If you wanna use a go-wide tokensy kinda theme, Odric, Lunarch Marshal makes your tokens quite scary in combat when mixed with Atraxa's key-word smorgasbord.
As somebody that plays Roon, this card scares me a lot. Its now one of three cards (Faerie Artisans, Torpor Orb and Hushwing Gryff) that make my deck completely unplayable.
I have a very similar style Marchesa deck. I use a lot of the same pillow-fort aspects but instead of creatures, I opted for the slow drain using cards that have Extort and stuff like Polluted Bonds and Ob Nixilis of the Black Oath. The deck is pretty interesting because it doesn't appear to be a threat until suddenly everybody is down in the teens and you now have 80+ life sitting behind a wall of stuff that doesn't allow profitable attacks.
Competitive always comes down to your meta. Does your deck smash your play-group on a regular basis? Then your deck is competitive compared to your meta. Does your deck average 25% win-rate in a 4 man pod? Then your deck is average for your meta and probably tuned just right.
Roon (ETB Shenanigans): Cloudblazer - Even though it cant evoke, a Mulldrifter is a Mulldrifter. Panharmonicon - Obvious card is obvious. Verdurous Gearhulk - Maybe ... I dont know if this card is good enough. Will test.
Asuza (Competitive Ramp): Nissa, Vital Force - This deck loves Horn of Greed, another that also doubles as a regrowth is cake in my book. Wildest Dreams - Looks like a have a foil Invasion Restock to trade.
New decks are going to be built around Rashmi, Eternities Crafter and Saheeli Rai is finally pushing me to create a Grixis Superfriends list thats based on artifacts. (Both Tezzerete, both Derretti, etc)
Me and my group greatly dislike proxies. I put time and money into finding cards for my deck through trades, through packs, buying singles or whatever other means my budget can afford. Its not fair that my time and effort for getting cards goes to waste when somebody shows up with a deck that has 100% of whatever they want in it because they spent 5 minutes going online, printing out copies of cards and putting them in sleeves over basic lands. Yes, it means I only have three to five commander decks build at a time and usually only two or three of them are ever considered "complete" (if thats even possible). But seriously, play with real cards people. Support the company that makes the game by actually buying the product.
You have the timing wrong, the original Spell Resolves second
You cast any spell you want, then in response to Rashmi's trigger you use your Mystical Tutor/Reclaim/Noxious Revival to put your desired cascade on top of your library.
Words of Waste is fairly mean with your Draw-7's. Means they cost 1 more and you only draw 7, but your opponents now have no hand instead. Also, once hands are empty, Anvil of Bogardan is a solid lock piece. Im also a fan of Teferi, Mage of Zhalfir once you have your lock pieces in place to make it a hard lock.
The lack of Delaying Shield is upsetting. You dont care about the upkeep triggers, but it does prevent you from losing your Monarchy ... or to infect for that matter.
Because Im playing the big ETB fatties above and big Teysa, Ive also stuck the enchantment based reanimation affects into my build: Animate Dead, Necromancy, Dance of the Dead.
Final suggestions are the "things dying drain-bros" Blood Artist and Falkenrath Noble with the combo-finisher Leonin Relic-Warder go to along with the aura reanimation spells. (Also works with Angel of Despair)
Edit: I forgot about Smoke works well when you go pillow-fort. Also Archetype of Courage is BFF's with deathtouch.
I have no clue on what the cut should be for him ... but Sakashima's Student is amazing in this deck. Ninjutsu for extra ETB triggers on your cheap guys, then go nuts with Roon'ing him into whatever you want turn after.
Asuza Turbo Ramp might get a Stonehoof Chieftain. Needs testing.
My other 7 decks are untouched.
Contemplating a new build for Atraxa, Praetors' Voice or Yidris, Maelstrom Wielder but Im not sure if I want to dedicate that many duals to either idea so far.
http://edhrec.com/
Turn 1 - Forest, Pass
Turn 2 - Forest, Roffelos, Pass.
Turn 3 - Forest, Asuza, Forest, Forest, Sylvan Primordial.
Washington, Renton - banky (Shane's Cards)
Cloudblazer - Even though it cant evoke, a Mulldrifter is a Mulldrifter.
Panharmonicon - Obvious card is obvious.
Verdurous Gearhulk - Maybe ... I dont know if this card is good enough. Will test.
Erebos (Casual Deck):
Demon of Dark Schemes - Maybe. Gotta test it.
Gonti, Lord of Luxury - Devotion + rattle snake.
Noxious Gearhulk - Mechratal!
Asuza (Competitive Ramp):
Nissa, Vital Force - This deck loves Horn of Greed, another that also doubles as a regrowth is cake in my book.
Wildest Dreams - Looks like a have a foil Invasion Restock to trade.
New decks are going to be built around Rashmi, Eternities Crafter and Saheeli Rai is finally pushing me to create a Grixis Superfriends list thats based on artifacts. (Both Tezzerete, both Derretti, etc)
Compulsion or other looter effects seem great with Library of Leng and Rashmi.
You cast any spell you want, then in response to Rashmi's trigger you use your Mystical Tutor/Reclaim/Noxious Revival to put your desired cascade on top of your library.
Also kinda shocked by the lack of discussion effects like Blood Reckoning, Hissing Miasma and Marchesa's Decree.
If Angel of Despair makes the deck, doesnt Ashen Rider make the cut as well?
Dread is a decent little functional copy of No Mercy.
Reverence has been great for me against token or weenie strategies that want to go wide, in addition to Ghostly Prison/Windborn Muse.
Because Im playing the big ETB fatties above and big Teysa, Ive also stuck the enchantment based reanimation affects into my build: Animate Dead, Necromancy, Dance of the Dead.
Final suggestions are the "things dying drain-bros" Blood Artist and Falkenrath Noble with the combo-finisher Leonin Relic-Warder go to along with the aura reanimation spells. (Also works with Angel of Despair)
Edit: I forgot about Smoke works well when you go pillow-fort. Also Archetype of Courage is BFF's with deathtouch.