Roon is a Bant shard general and is the premier commander for flickering/blinking creatures in and out of play.
Fickering/blinking is a term used to describe the effect of removing a permanent from play and then its return to play.
Roon is best at taking advantage of creatures who have either "entering the battlefield" (ETB) triggers or leaving the battlefield (LTB) triggers.
Besides being great at flickering, Roon comes with a sizable body and two great keywords, Vigilance and Trample. While, this thread focuses on ETB creatures and flickering them for maximum effect, Roon could very well be a decent voltron commander. Giving him any sword of "x & y", attacking and then using his activated ability to remove key blocker from your opponent can be a viable strategy.
Why to play Roon:
-You like to play creatures that give you an effect immediately.
-You like to have more control than you board state shows.
-You like politicing in multiplayer games.
-You like a general with great abilities that supports your army but can also beat some face!
-You like Rhinos
Here is the deck breakdown based on CMC.
CMC1 = 4
CMC2 = 9
CMC3 = 16
CMC4 = 12
CMC5 = 11
CMC6 = 5
CMC7 = 4
CMC8 = 1
Card Breakdown
2-Drops
Coiling Oracle - This card is either ramp or card advantage, either way you can't go wrong. Solid two drop. This card can be a target for both Reveillark or Sun titan.
Snapcaster Mage - This fine gentleman has proven his weight in gold in standard and he can be just as effective in Commander. For 1UW we can flash him in and get another flicker out of Cloudshift. Still a target for both Reveillark or Sun titan.
Stoneforge Mystic - Great tutor that gets any of your swords or boots.
Wall of Blossoms - 0/4 Defender with a cantrip effect. Great for a little early game protection from cards like Isamaru, Hound of Konda and other annoying 1 drops. Late game, its a two drop chump blocker that cantrips. Another target for both Reveillark or Sun titan.
3-Drops
Eternal Witness - This is a Recollect on a 2/1 stick. This card is at home in every green deck regardless if the deck can reuse her, and in this deck we don't just use her we abuse her! With this card in the graveyard, a Sun titan or Reveillark trigger can now grab anything in your graveyard.
Fiend Hunter - One of the most underrated cards in a Roon deck. I see all over these forums this card not making the cut. Stacking the triggers in the right order, this card permanently exiles a creature if you flicker him before the 1st ETB trigger and then he exiles another from the ETB tigger from the flicker. VALUE. Once again, a target for both Reveillark or Sun titan.
Archaeomancer - Recurs an instant or sorcery. There are 14 potential targets in the deck for this card. I usually try to get back a flicker card. Reveillark target.
Galepowder Mage - a Flying 3/3 for 4 mana is solid on its own, add in the fact that it can flicker ANY target-able creature in play, its gold. This is also a good early creature for any of the swords.
Glen Elendra Archmage - Bounce her after she gets her persist counter on her to "reset" and reuse her counter ability again. Reveillark target.
Mystic Snake - This is THE card. So much utility and control. Any flicker card or paired with Crystal Shard can give you a surprising amount of control. This card is Reveillark - able, just bounce her in response to something to get the snake returned for a nice counter.
Oracle of Mul Daya - This is one of the two creatures in the deck that has no ETB or LTB abilities (or interact with them). So, why is in here? Because its just that dang good. Oracle has become one of my favorite cards and makes every green deck I have ever played.
Restoration Angel - We all know how amazing this card was with Thragtusk in standard. This card is just added value to any ETB or LTB creature. Also, it can be a great flash in blocker.
Stonehorn Dignitary - This creature does a good job of locking out the aggro player of the group.
Acidic Slime - This creature is normally a two for one anyways, flickering it 2-3 times is awesome value.
Ixidron - Such an incredibly undervalued card. This card doesn't target, so it gets around hexproof/shroud. It also doesn't care about an Avacyn, Angel of Hope.
Karmic Guide - Any creature come back, period. Rarely do I play the echo cost but against black decks, the protection can be relevant.
Prophet of Kruphix - I love this card. Seedborn muse plus Teferi, Mage of Zhalfir all wrapped into one great card. Some people say it’s not good enough because it doesn't untap artifacts, in this deck, we hardly care. If you can untap once, and play 1 creature, it has paid for itself.
Reveillark – One of the best cards in the deck. Great creature recursion and we have 22(!) targets for it to hit. I try to avoid casting it for its Evoke cost so I can re-use its trigger recursion ability.
Thragtusk – I am in the testing phases of this card. In standard it was a powerhouse and there is no denying how good it was. Is five life and a 3/3 good enough? We shall see. Jury is still out on this card. If, you get 10-15 life from this card, then the value is definitely there.
6-Drops
Deadeye Navigator – Play this card, period. Arguably, the most broken card in Commander. I recommend not playing this card till you have eight mana so that you can protect it from at least one spot removal. He can enable us to do so many ridiculous things in this deck, keep him safe. Flicker and profit.
Duplicant – Superb card. Exile a creature is the best removal and making this guy a remove multiple threats from a few flickers makes him even better. He and Reveillark are good friends too.
Frost Titan – Usually considered unwanted cousin of the Titan family and but, he has become a feared beast in my playgroup. His passive makes him very difficult to deal with and this triggered ability can keep a card or more locked out completely.
Prime Speaker Zegana – Our best draw spell in the deck. I am never sad to see this card. With Roon on board, she is a draw 10 for eight mana, and eight mana is easy in Commander. Best part, she is recurable with Reveillark.
Sun Titan – This is card that can enable some very powerful plays in this deck. There are 18 non-land permanents in this deck that can be a target for him. So, that will almost always guarantee that by the time you hit 6 mana, you have a target for him.
7-Drops
Avenger of Zendikar – A Commander all-star for sure. Avenger into Craterhoof Behemoth is almost always a game winner. Remember to save your fetch lands for cracking after you play him if you can for extra +1/+1 counters.
Luminate Primordial – This is probably the 1st card in the list that made you think “eww…”, and since the primordials came out I used to think the same thing. Then, I decided I was tired of never playing my nice foil copy I have, and gave him a shot for a night. It made me a believer. The life-gain is always negligible, and if its not, well, you prolly don’t care because that target was about to kill you anyway. Couple flickers to clear everyone’s board of threats and you will be happy with him.
Sphinx of Uthuun – Fact or Fiction on a flying 5/6 body. Yes please. It can be a good beater with some great card advantage.
Sylvan Primordial – Widely considered to be the most broken card in Commander, and has been in the topic of banning since its release. Till that day, we play this card.
8-Drops
Craterhoof Behemoth – The game winner. Cast is with a full board to win outright, or in this deck, cast it with just a few creatures, and flicker it once or twice to get tons of +X/+X.
Sol Ring - Can lead to some very quick starts. Just a great ramp artifact.
Swiftfoot Boots - These boots are great protection from spot removal and allows a creature haste. In most decks I run Lightning Greaves as well, but with the amount that we target our own creatures I try to avoid shroud.
Crystal Shard - The utility this card brings is so great. Bounce your own creature to avoid a removal spell or just to recast it for added value off of ETB or LTB triggers. Or if your opponent is silly enough to tap out, bounce their creature.
Sylvan Library - One of the best cards green can play in the 2-drop spot and it is the reason I am not running Sensei's Divining Top. If you like redundancy run them both.
Aura Shards - It allow you to keep all those pesky artifacts off the board. This will be a huge target. I do not recommend playing this on the curve. Play it when you can get great value out of it immediately.
Rhystic Study - Playing this on the curve can easily net you 4-5 cards from people. Late game, it can really fall off, but if you can politic well, you can still get some decent use out of it.
Mirari's Wake - Mana doubler with a little added P/T bonus. One of my favorites.
Venser, the Sojourner - Venser is our only planeswalker in the deck but he is a perfect complement to what this deck does well. Also, getting to his ultimate has always come easy for me, and it is one worth using.
Cloudshift, Momentary Blink, Ghostly Flicker - These 3 cards are so amazing I cannot believe they are not used in every ETB deck. They are easily recurable and I am never sad to see them in my hand.
Path to Exile - This is Whites best removal and to cheap not to run. In a pinch, cast it on your own cheap creature to ramp.
Cyclonic Rift - I win card. Cast it just before someones end phase to make them discard a ton of cards.
Bant Charm - Most of the times I use it for a tuck spell, but it is one of the few ways this deck can deal with a Torpor Orb.
Green sun's Zenith - Tutor for any green creature. Pay 0 and get Dryad Arbor for some ramp. Plus I just love that it place the creature directly into play.
Curse of the Swine - This deck lacks in direct removal. This card exiles and that is the kind of spot removal I love. This card is better than you think, plus this basically a "boar" wipe!
Rite of Replication - This is the mega clone for some crazy plays. I have kicked this spell, cloned Prime Speaker Zegana, and drawn 30 cards before. Makes for fun games.
Supreme Verdict and Rout - Sometimes you just need a board wipe. I like both of these over the traditional Wraths because of the uncounterable and instant speed.
Cards that are worth the consideration in your deck.
These are the cards that didn't make my final build but can be quality cards for you in your meta. Also, these are the first cards that either got cut from list or bounce back into my list on occasion.
Solemn Simulacrum - Some say that this should be an auto include, but with Wood Elves and Farhaven Elf I think that this can be cut. I do realize that there is a cantrip on its back end, but the sad robot must die to receive the cantrip. If, you could flicker it for the cantrip it would be an absolute auto-include. If you feel you need more ramp, this is a good card to look to.
Kitchen Finks - Yes we can reset persist creatures, but the 3 life I don't feel like is good enough to make the list.
Sundial of the Infinite - This card combos with Roon's flicker ability. This card allows you to permanently exile a creature with Roon's flicker. When the trigger is on the stack to return the creature to play, activate the Sundial to get rid of the creature indefinitely. If you want to try this card I do reccomend the next card for additional exile effects.
Mistmeadow Witch - The witch needs some testing because it could be a good card, I just haven't tried it yet. 4 mana flicker is a little expensive, but on the plus side it could exile an enemy creature.
Harmonic Sliver - Solid Naturalize effect on a creature. If you need more of these effects this is a great card to run.
Angel of Finality - This is a good effect on a white creature and if recursion is a problem in your meta, look no further.
Body Double - This is a fun card, but it is only as good as the creatures that are in your opponents graveyard.
Bane of Progress - People are severely over-reacting to this card and how "busted" it is. I personally believe you need to have your deck somewhat built around it, and I love my artifacts and enchantments.
Brutalizer Exarch - I love this card. I have played it for quite awhile too, but I finally had to cut it because I already have a high curve. This is great card and I do recommend trying it if you are on the fence about it. There is always a permanent that need to be tucked or a creature you need.
Progenitor Mimic - This is a card I do not own and have never even seen played. It looks like it could be a very powerful creature if left unchecked. First chance I get to try this card out I will.
Soul of the Harvest - Another decent draw effect and a somewhat costly creature. He will be a target for your opponents for sure.
Voidmage Husher - I played this card for awhile and just never played as good as I wanted it to be. I don't believe this deck needs another situational counter beyond the 3 we already have.
Palinchron - Busted card is busted. If you are looking for a win at all costs card, this is it. This is a personal choice not to play Palinchron. this card can easily lead to infinite mana. If you want this kind of effect, play it, but be prepared get tons of nasty looks.
Spike weaver - Infinite fog effects. If I feel like I can't control the boards in my meta this card will start being played.
Conjurer's Closet - Seems like this is an auto-include by this card is a HUGE target. I don't think I have ever gotten more than 1 use out of it. It is a fun card but it kinda seems like a win more card for me.
Woodfall Primus - A great reusable effect. The only reason I think you should use this card over a lower CMC creature that has a similar effect (Acidic Slime) is if planeswalkers are big in your meta. Otherwise, he is just too expensive for me.
Change Log:
I am working towards making this thread a Primer so please only respond with positive and intelligent posts. Thanks guys.
Why on earth aren't you using seedborn muse? That card is an all star in this deck.
Also, roon + eternal witness/mnemonic wall/archaeomancer + time warp (or one of its variants) = infinite turns. Extra turn cards are great stand-alone cards and also a game winner in this deck.
I'd cut the swords for muse and a couple time warp cards.
Edit: I forgot to mention gilded drake which is amazing on its own and obscene with roon.
How is Resto Angel working out? I find her to be severely underwhelming in EDH. Most Roon lists, including mine, have a bunch of ways to blink things, usually multiple times, and I find a her casting cost and body to be underwhelming for a single simple blink effect.
I don't know if this makes me a jerk, but I find in long drawn out gummed up boards sometimes having an "I win" button is nice. I run Tooth and Nail + Defense of the Heart in my Roon build, add Palinchron to my ETB creature package, and pack a Blue Sun's Zenith. This lets me Tooth for Palinchron plus Deadeye Navigator, untap lands, and then blink them in and out for infinite mana. At some point let the Deadeye come down and link up with any of your various draw engine ETB creatures instead, draw through your deck until you find a BSZ, and start killing everyone at the table. Since BSZ shuffles back into your library, you can keep digging for it as many times as you need.
Now, I acknowledge this is going to be highly meta-dependent, and some groups just won't put up with that kind of stuff. Mine doesn't mind so far, but I may take it out if they get frustrated with it later on. YMMV. But since you labeled the thread "Competetive" I thought I'd throw it out there.
I like your deck! I run a similar build, though mine runs slightly more ramp, a higher curve, and more GY hate. A few thoughts, based on my experiences with Roon:
In my experience, Elvish Visionary is better than Wall of Blossoms because it can attack while holding equipment. I run both, but if I had to pick just one, Visionary would get the nod.
Speaking of equipment, Jitte is absurd and you should definitely run it.
Fiend Hunter seems kind of weak, as it's surprisingly difficult to permanently exile things with him. I cut him from my deck after playing a few games with him. I replaced him with Sower of Temptation, which lacks the ability to permanently deal with things but makes for a much bigger tempo swing. I've been meaning to try out Mangara of Corondor, though, which seems like it would fulfill much the same role.
You only run 14 instants and sorceries (one of which, GSZ, should not be in the GY, so 13 that are recurrable under normal circumstances), so running Snapcaster AND Archaeomancer AND Mnemonic Wall seems like a bit much. I get that it's super powerful to recur instants and sorceries a bunch of times, but you have so few that it might make sense to cut one of the instant/sorcery recursion creatures.
Frost Titan doesn't seem all that great. He's OK, but I think there are more powerful things you could be doing.
While he isn't a blink target, Stonehewer Giant is great in a deck that's running a lot of busted equipment like yours is.
Lavinia of the Tenth is awesome. She locks down mana artifacts, equipment, tokens, many planeswalkers, and small creatures. I definitely recommend trying her out.
Chord of Calling seems like a better Wargate. While you can only get creatures with it, you can cast it at instant speed, which can lead to huge blowouts.
Stonecloaker is another good GY hate option. It can also save an important creature (like Prophet of Kruphix) from a wrath if Roon is unavailable. Probably meta-dependant.
I notice you don't run any bounce except for Venser. Riftwing Cloudskate is another possibility if you want to expand your options there.
Terastodon is another creature in the same vein as Woodfall Primus. Obviously, if Woodfall Primus is too expensive for you then this guy is too, but I just wanted to throw him out there as another option in the "blowing up noncreature permanents" department.
Blade Splicer has helped me defend against super aggressive starts from opposing decks and is an OK blink target later on. You run a lower curve than me, so this might not be as much of an issue for you.
Armada Wurm is kind of big and dumb, but it gets out of hand pretty quickly if you blink it a couple of times.
You didn't mention lands, but Alchemist's Refuge is better in Roon than in most decks, and I found that it is worth the slot in my deck.
Any particular reason you're not running Tooth and Nail? It's pretty busted even under the fairest circumstances, and the Magical Christmasland scenarios with it are just bonkers.
Our Commander:
Roon is a Bant shard general and is the premier commander for flickering/blinking creatures in and out of play.
Fickering/blinking is a term used to describe the effect of removing a permanent from play and then its return to play.
Roon is best at taking advantage of creatures who have either "entering the battlefield" (ETB) triggers or leaving the battlefield (LTB) triggers.
Besides being great at flickering, Roon comes with a sizable body and two great keywords, Vigilance and Trample. While, this thread focuses on ETB creatures and flickering them for maximum effect, Roon could very well be a decent voltron commander. Giving him any sword of "x & y", attacking and then using his activated ability to remove key blocker from your opponent can be a viable strategy.
Why to play Roon:
-You like to play creatures that give you an effect immediately.
-You like to have more control than you board state shows.
-You like politicing in multiplayer games.
-You like a general with great abilities that supports your army but can also beat some face!
-You like Rhinos
The Deck
2 Coiling Oracle
2 Snapcaster Mage
2 Stoneforge Mystic
2 Wall of Blossoms
3 Eternal Witness
3 Farhaven Elf
3 Fiend Hunter
3 Fierce Empath
3 Wood Elves
4 Archaeomancer
4 Galepowder Mage
4 Glen Elendra Archmage
4 Mystic Snake
4 Oracle of Mul Daya
4 Phyrexian Metamorph
4 Restoration Angel
4 Stonehorn Dignitary
4 Venser, Shaper Savant
5 Acidic Slime
5 Ixidron
5 Karmic Guide
5 Mnemonic Wall
5 Mulldrifter
5 Prophet of Kruphix
5 Reveillark
5 Thragtusk
6 Deadeye Navigator
6 Duplicant
6 Frost Titan
6 Prime Speaker Zegana
6 Sun Titan
7 Avenger of Zendikar
7 Luminate Primordial
7 Sphinx of Uthuun
7 Sylvan Primordial
8 Craterhoof Behemoth
1 Sol Ring
2 Swiftfoot Boots
3 Crystal Shard
3 Sword of Fire and Ice
3 Sword of Feast and Famine
3 Sword of Light and Shadow
Enchantments (4)
2 Sylvan Library
3 Aura Shards
3 Rhystic Study
5 Mirari's Wake
Planeswalkers (1)
5 Venser, the Sojourner
Instants (6)
1 Cloudshift
1 Path to Exile
2 Cyclonic Rift
2 Momentary Blink
3 Bant Charm
3 Ghostly Flicker
Sorceries (8)
1X Green Sun's Zenith
2X Curse of the Swine
3 Kodama's Reach
3x Wargate
4 Rite of Replication
4 Skyshroud Claim
4 Supreme Verdict
5 Rout
29 of the 62 nonland cards are CMC 3 or less.
Here is the deck breakdown based on CMC.
CMC1 = 4
CMC2 = 9
CMC3 = 16
CMC4 = 12
CMC5 = 11
CMC6 = 5
CMC7 = 4
CMC8 = 1
Card Breakdown
Coiling Oracle - This card is either ramp or card advantage, either way you can't go wrong. Solid two drop. This card can be a target for both Reveillark or Sun titan.
Snapcaster Mage - This fine gentleman has proven his weight in gold in standard and he can be just as effective in Commander. For 1UW we can flash him in and get another flicker out of Cloudshift. Still a target for both Reveillark or Sun titan.
Stoneforge Mystic - Great tutor that gets any of your swords or boots.
Wall of Blossoms - 0/4 Defender with a cantrip effect. Great for a little early game protection from cards like Isamaru, Hound of Konda and other annoying 1 drops. Late game, its a two drop chump blocker that cantrips. Another target for both Reveillark or Sun titan.
3-Drops
Eternal Witness - This is a Recollect on a 2/1 stick. This card is at home in every green deck regardless if the deck can reuse her, and in this deck we don't just use her we abuse her! With this card in the graveyard, a Sun titan or Reveillark trigger can now grab anything in your graveyard.
Fiend Hunter - One of the most underrated cards in a Roon deck. I see all over these forums this card not making the cut. Stacking the triggers in the right order, this card permanently exiles a creature if you flicker him before the 1st ETB trigger and then he exiles another from the ETB tigger from the flicker. VALUE. Once again, a target for both Reveillark or Sun titan.
Farhaven Elf - Ramp on a body. Another target for both Reveillark or Sun titan.
Fierce Empath - A tutor for a fatty. Again, a target for both Reveillark or Sun titan.
Wood Elves - See Farhaven Elf.
4-Drops
Archaeomancer - Recurs an instant or sorcery. There are 14 potential targets in the deck for this card. I usually try to get back a flicker card. Reveillark target.
Galepowder Mage - a Flying 3/3 for 4 mana is solid on its own, add in the fact that it can flicker ANY target-able creature in play, its gold. This is also a good early creature for any of the swords.
Glen Elendra Archmage - Bounce her after she gets her persist counter on her to "reset" and reuse her counter ability again. Reveillark target.
Mystic Snake - This is THE card. So much utility and control. Any flicker card or paired with Crystal Shard can give you a surprising amount of control. This card is Reveillark - able, just bounce her in response to something to get the snake returned for a nice counter.
Oracle of Mul Daya - This is one of the two creatures in the deck that has no ETB or LTB abilities (or interact with them). So, why is in here? Because its just that dang good. Oracle has become one of my favorite cards and makes every green deck I have ever played.
Phyrexian Metamorph - You play blue, you play Metamorph period.
Restoration Angel - We all know how amazing this card was with Thragtusk in standard. This card is just added value to any ETB or LTB creature. Also, it can be a great flash in blocker.
Stonehorn Dignitary - This creature does a good job of locking out the aggro player of the group.
Venser, Shaper Savant - Returns any permanent to its owners hand. Maze of Ith, Darksteel Forge, or even Jace, the Mind Sculptor. DO NOT FORGET, this is a soft counter to any spell too.
5-Drop
Acidic Slime - This creature is normally a two for one anyways, flickering it 2-3 times is awesome value.
Ixidron - Such an incredibly undervalued card. This card doesn't target, so it gets around hexproof/shroud. It also doesn't care about an Avacyn, Angel of Hope.
Karmic Guide - Any creature come back, period. Rarely do I play the echo cost but against black decks, the protection can be relevant.
Mnemonic Wall - See Archaeomancer. I value my instants and sorceries enough to run both of these cards.
Mulldrifter - Great draw spell. Also a great target for Reveillark.
Prophet of Kruphix - I love this card. Seedborn muse plus Teferi, Mage of Zhalfir all wrapped into one great card. Some people say it’s not good enough because it doesn't untap artifacts, in this deck, we hardly care. If you can untap once, and play 1 creature, it has paid for itself.
Reveillark – One of the best cards in the deck. Great creature recursion and we have 22(!) targets for it to hit. I try to avoid casting it for its Evoke cost so I can re-use its trigger recursion ability.
Thragtusk – I am in the testing phases of this card. In standard it was a powerhouse and there is no denying how good it was. Is five life and a 3/3 good enough? We shall see. Jury is still out on this card. If, you get 10-15 life from this card, then the value is definitely there.
6-Drops
Deadeye Navigator – Play this card, period. Arguably, the most broken card in Commander. I recommend not playing this card till you have eight mana so that you can protect it from at least one spot removal. He can enable us to do so many ridiculous things in this deck, keep him safe. Flicker and profit.
Duplicant – Superb card. Exile a creature is the best removal and making this guy a remove multiple threats from a few flickers makes him even better. He and Reveillark are good friends too.
Frost Titan – Usually considered unwanted cousin of the Titan family and but, he has become a feared beast in my playgroup. His passive makes him very difficult to deal with and this triggered ability can keep a card or more locked out completely.
Prime Speaker Zegana – Our best draw spell in the deck. I am never sad to see this card. With Roon on board, she is a draw 10 for eight mana, and eight mana is easy in Commander. Best part, she is recurable with Reveillark.
Sun Titan – This is card that can enable some very powerful plays in this deck. There are 18 non-land permanents in this deck that can be a target for him. So, that will almost always guarantee that by the time you hit 6 mana, you have a target for him.
7-Drops
Avenger of Zendikar – A Commander all-star for sure. Avenger into Craterhoof Behemoth is almost always a game winner. Remember to save your fetch lands for cracking after you play him if you can for extra +1/+1 counters.
Luminate Primordial – This is probably the 1st card in the list that made you think “eww…”, and since the primordials came out I used to think the same thing. Then, I decided I was tired of never playing my nice foil copy I have, and gave him a shot for a night. It made me a believer. The life-gain is always negligible, and if its not, well, you prolly don’t care because that target was about to kill you anyway. Couple flickers to clear everyone’s board of threats and you will be happy with him.
Sphinx of Uthuun – Fact or Fiction on a flying 5/6 body. Yes please. It can be a good beater with some great card advantage.
Sylvan Primordial – Widely considered to be the most broken card in Commander, and has been in the topic of banning since its release. Till that day, we play this card.
8-Drops
Craterhoof Behemoth – The game winner. Cast is with a full board to win outright, or in this deck, cast it with just a few creatures, and flicker it once or twice to get tons of +X/+X.
Sol Ring - Can lead to some very quick starts. Just a great ramp artifact.
Swiftfoot Boots - These boots are great protection from spot removal and allows a creature haste. In most decks I run Lightning Greaves as well, but with the amount that we target our own creatures I try to avoid shroud.
Crystal Shard - The utility this card brings is so great. Bounce your own creature to avoid a removal spell or just to recast it for added value off of ETB or LTB triggers. Or if your opponent is silly enough to tap out, bounce their creature.
Sword of Fire and Ice, Sword of Light and Shadow, Sword of Feast and Famine - All 3 are great on their own or on just about anyone. These allow for Roon himself to be a threat for the 21 commander damage.
Sylvan Library - One of the best cards green can play in the 2-drop spot and it is the reason I am not running Sensei's Divining Top. If you like redundancy run them both.
Aura Shards - It allow you to keep all those pesky artifacts off the board. This will be a huge target. I do not recommend playing this on the curve. Play it when you can get great value out of it immediately.
Rhystic Study - Playing this on the curve can easily net you 4-5 cards from people. Late game, it can really fall off, but if you can politic well, you can still get some decent use out of it.
Mirari's Wake - Mana doubler with a little added P/T bonus. One of my favorites.
Venser, the Sojourner - Venser is our only planeswalker in the deck but he is a perfect complement to what this deck does well. Also, getting to his ultimate has always come easy for me, and it is one worth using.
Cloudshift, Momentary Blink, Ghostly Flicker - These 3 cards are so amazing I cannot believe they are not used in every ETB deck. They are easily recurable and I am never sad to see them in my hand.
Path to Exile - This is Whites best removal and to cheap not to run. In a pinch, cast it on your own cheap creature to ramp.
Cyclonic Rift - I win card. Cast it just before someones end phase to make them discard a ton of cards.
Bant Charm - Most of the times I use it for a tuck spell, but it is one of the few ways this deck can deal with a Torpor Orb.
Green sun's Zenith - Tutor for any green creature. Pay 0 and get Dryad Arbor for some ramp. Plus I just love that it place the creature directly into play.
Curse of the Swine - This deck lacks in direct removal. This card exiles and that is the kind of spot removal I love. This card is better than you think, plus this basically a "boar" wipe!
Kodama's Reach and Skyshroud Claim - Ramp and fixer, nuff said.
Wargate - Another tutor, but its for any permanent. I personally love either Deadeye Navigator or Venser, the Sojourner.
Rite of Replication - This is the mega clone for some crazy plays. I have kicked this spell, cloned Prime Speaker Zegana, and drawn 30 cards before. Makes for fun games.
Supreme Verdict and Rout - Sometimes you just need a board wipe. I like both of these over the traditional Wraths because of the uncounterable and instant speed.
Cards that are worth the consideration in your deck.
Solemn Simulacrum - Some say that this should be an auto include, but with Wood Elves and Farhaven Elf I think that this can be cut. I do realize that there is a cantrip on its back end, but the sad robot must die to receive the cantrip. If, you could flicker it for the cantrip it would be an absolute auto-include. If you feel you need more ramp, this is a good card to look to.
Kitchen Finks - Yes we can reset persist creatures, but the 3 life I don't feel like is good enough to make the list.
Sundial of the Infinite - This card combos with Roon's flicker ability. This card allows you to permanently exile a creature with Roon's flicker. When the trigger is on the stack to return the creature to play, activate the Sundial to get rid of the creature indefinitely. If you want to try this card I do reccomend the next card for additional exile effects.
Mistmeadow Witch - The witch needs some testing because it could be a good card, I just haven't tried it yet. 4 mana flicker is a little expensive, but on the plus side it could exile an enemy creature.
Harmonic Sliver - Solid Naturalize effect on a creature. If you need more of these effects this is a great card to run.
Angel of Finality - This is a good effect on a white creature and if recursion is a problem in your meta, look no further.
Body Double - This is a fun card, but it is only as good as the creatures that are in your opponents graveyard.
Bane of Progress - People are severely over-reacting to this card and how "busted" it is. I personally believe you need to have your deck somewhat built around it, and I love my artifacts and enchantments.
Brutalizer Exarch - I love this card. I have played it for quite awhile too, but I finally had to cut it because I already have a high curve. This is great card and I do recommend trying it if you are on the fence about it. There is always a permanent that need to be tucked or a creature you need.
Phyrexian Ingester - An exile effect with an upside. I choose Luminate Primordial over this card though for better board control.
Progenitor Mimic - This is a card I do not own and have never even seen played. It looks like it could be a very powerful creature if left unchecked. First chance I get to try this card out I will.
Soul of the Harvest - Another decent draw effect and a somewhat costly creature. He will be a target for your opponents for sure.
Voidmage Husher - I played this card for awhile and just never played as good as I wanted it to be. I don't believe this deck needs another situational counter beyond the 3 we already have.
Palinchron - Busted card is busted. If you are looking for a win at all costs card, this is it. This is a personal choice not to play Palinchron. this card can easily lead to infinite mana. If you want this kind of effect, play it, but be prepared get tons of nasty looks.
Spike weaver - Infinite fog effects. If I feel like I can't control the boards in my meta this card will start being played.
Knight-Captain of Eos - See above. Also this card does produce tokens.
Conjurer's Closet - Seems like this is an auto-include by this card is a HUGE target. I don't think I have ever gotten more than 1 use out of it. It is a fun card but it kinda seems like a win more card for me.
Woodfall Primus - A great reusable effect. The only reason I think you should use this card over a lower CMC creature that has a similar effect (Acidic Slime) is if planeswalkers are big in your meta. Otherwise, he is just too expensive for me.
Change Log:
I am working towards making this thread a Primer so please only respond with positive and intelligent posts. Thanks guys.
(also cheapens Deadeye Navigator)...
going to build a Roon centric deck soon and see how it all is
BW Haakon, Stromgald Scourge: Tribal Knights BW
UWG Roon Astral Slide: Cycling and Sliding Based Deck UWG
Also, roon + eternal witness/mnemonic wall/archaeomancer + time warp (or one of its variants) = infinite turns. Extra turn cards are great stand-alone cards and also a game winner in this deck.
I'd cut the swords for muse and a couple time warp cards.
Edit: I forgot to mention gilded drake which is amazing on its own and obscene with roon.
My G Yisan, the Bard of Death G deck.
My BUGWR Hermit druid BUGWR deck.
Is Birthing Pod missing due to budget? Same for either Survival of the Fittest or Fauna Shaman?
You have the metamorph, but if you are blinking a lot, it's such a good effect that you probably want two. So, original Clone?
You seem to only have one answer to Torpor Orb? Is this card not a thing in your metagame? If it is, might I suggest Aura of Silence?
How is Resto Angel working out? I find her to be severely underwhelming in EDH. Most Roon lists, including mine, have a bunch of ways to blink things, usually multiple times, and I find a her casting cost and body to be underwhelming for a single simple blink effect.
GWBKarador, Necrotic Ooze SubthemeBWG
Now, I acknowledge this is going to be highly meta-dependent, and some groups just won't put up with that kind of stuff. Mine doesn't mind so far, but I may take it out if they get frustrated with it later on. YMMV. But since you labeled the thread "Competetive" I thought I'd throw it out there.
And for that matter Strionic Resonator. It basically gives all your ETB creatures a "kicker" cost of 2 to double their ETB ability.
GWBKarador, Necrotic Ooze SubthemeBWG