What Boros needs imo is a powerful tutor effect in the command zone that lets you do cool stuff with more consistency. Even at a cost. Maybe something like:
Zoya, Stoneforge Master - 2RW
Legendary Creature - Kor Monk Warrior
When Zoya enters the battlefield, search your library for an equipment card and put it into your hand, then shuffle your library. 1RW, discard a card: Return target equipment from your graveyard to the battlefield equipped to target creature you control.
2/4
I would argue that this isn't broken, but is still very boros. You get to tutor, use recursion, and utilize the graveyard as a resource with minimal built in card advantage. You still have to play creatures and attack to get the full effectiveness, but at least you don't just lose to a board wipe.
I wonder how much a mono blue enchantment that just drew a card on your upkeep would cost. 2UU? Phyrexian Arena is already 1BB, so it couldn't really be 3cmc, and at 4cmc its probably too bad. Maybe 6UU with delve? 8UU? There are some artifacts that come close, but have major downsides.
4CMC planeswalkers that draw a card every turn on a +1 or +0 ability are hard to come by (Jace the Mindscultptor is the only one that comes to mind). An enchantment wouldn't have as much flexibility, but would have more resilience.
This point is probably moot because even a 1UU draw a card every turn enchantment with no downside might not be cubable.
Just play Wanderer! 34~ lands, 30+ ramp spells, and a bunch of fun cards from 4-7cmc.
Some personal favorites: Pathbreaker Ibex, Scourge of the Throne, and Diluvian Primordial.
As a bonus, every set typically has a cheap card that you can add to the deck.
Honestly, the way to beat MLD is to not rely on lands. Keep your curve down. Play more artifact mana. Play removal/discard/counters. Play actual threats that discourage MLD. Nobody will Armageddon if they know they will lose after they cast it. Crucible of Worlds will help out a ton. Planeswalkers or powerful enchantments that hang around can help alot as well.
Or you could play the MLD deck. Kaalia is pretty good at that. If you think of her as a 4 mana creature that creates 6+ mana a turn, and that you don't actually need lands anymore, you'll go much further.
Also, Maelstrom Wanderer doesn't care about MLD as much as you might think. The trick is to play like 32+ ramp cards. That much ramp density lets you recover from MLD much better than most decks. Also, if you already have MW out, the odds of your opponent using Armageddon is pretty low. You have a 7/5 out that is going to kill them very quickly. Honestly, cascading into Wildfire, Sunder or Jokulhaups is pretty freaking awesome, and wins tons of games.
If I were OP, I would be slamming down Blood Moon and friends so hard it would make all those Spikes reconsider their life choices. Archangel Avacyn and Kaalia of the Vast aren't very threatening as commanders, all things considered, so the main way of bringing other decks down to your level is lowering your curve way down, playing creatures that actually attack, removal, stax, and LD.
If I'm sitting in a pod and in the first two turns I see around 4-5 shuffle effects between the players, I'm getting really worried. If I see cards like Mox Opal, Preordain, or Mystic Remora I would assume I'm playing against some tier 1-2 decks. Kaalia probably isn't going to cut it unless you can play something like a Null Rod or Rest in Peace or Suppression Field. So you might as well play those cards.
Maybe its the type of deck you are trying to build. Relying heavily on your commander while also playing many boardwipes is a recipe for disaster. If you want to continue playing wraths, I would suggest either, using your commander as a combo piece/kill condition, have a commander that recurs for cheap/free, or play a deck that is just faster so you don't have to rely on wraths to stay alive.
Slimefoot, the Stowaway is going right into my Ghave deck, but I'm sure he would be a good commander in his own right. There aren't a whole lot of saproling cards in Magic, but I hope this set comes out with another boon or two for that deck.
Also, O Captain, My Captain is awfully purdy. Jhoira can command me anywhere she pleases.
You only need to flicker Teferi twice the first time, then only once per turn after that. I guess that means 11 mana the turn you cast Teferi. So you gotta cast your commander (3 mana), cast Cloudskate (5 mana), Displacer (3 mana), Teferi (5 mana) and use displacer twice (6 mana), for a total of 22 mana spread out over a few turns. You're better off with literally any other strategy.
Didn't say it was a good combo lol. This is for the memes.
With Brago, King Eternal you don't need extra mana the turn he comes down, but Brago doesn't really need help to win with 5 mana.
Like some others have said, pick a commander you think is cool and would like to cast many times throughout the game. Pick a strategy or a theme that compliments the commander and has some sweet cards that you like to play.
Whatever you build, for starters I would start with 35 lands, around 10 ramp spells, and some card draw. After that, find cards that work well with your commander, and prioritize those. After that some removal/gravehate and that should be enough to play some of your first games.
I would recommend a pro-active strategy to a beginner, rather than a controlling style. It doesn't have to be 'attack with creatures' but it should be something you are working towards, not trying to prevent the opponent from doing. Push towards a goal.
Pick a commander with 2 or 3 colors. One color limits you a bunch, and 4-5 colors gives huge consistency problems when building on a budget.
A sweet card for this type of deck is Zur's Weirding, which is an awesome card for 1v3 type games. And since you will typically have more life, you will inevitable come out on top. Your worst card looks like Sydri, Galvanic Genius.
One small recommendation, format your decklist not by alphabet, but by card type or function. Sorting by cmc inside also makes it much easier to give critiques for decks.
Zoya, Stoneforge Master - 2RW
Legendary Creature - Kor Monk Warrior
When Zoya enters the battlefield, search your library for an equipment card and put it into your hand, then shuffle your library.
1RW, discard a card: Return target equipment from your graveyard to the battlefield equipped to target creature you control.
2/4
I would argue that this isn't broken, but is still very boros. You get to tutor, use recursion, and utilize the graveyard as a resource with minimal built in card advantage. You still have to play creatures and attack to get the full effectiveness, but at least you don't just lose to a board wipe.
4CMC planeswalkers that draw a card every turn on a +1 or +0 ability are hard to come by (Jace the Mindscultptor is the only one that comes to mind). An enchantment wouldn't have as much flexibility, but would have more resilience.
This point is probably moot because even a 1UU draw a card every turn enchantment with no downside might not be cubable.
Some personal favorites: Pathbreaker Ibex, Scourge of the Throne, and Diluvian Primordial.
As a bonus, every set typically has a cheap card that you can add to the deck.
There you go.
Or you could play the MLD deck. Kaalia is pretty good at that. If you think of her as a 4 mana creature that creates 6+ mana a turn, and that you don't actually need lands anymore, you'll go much further.
Probably the best thing to do is play something like Titania, Protector of Argoth, The Gitrog Monster, or Muldrotha, the Gravetide.
Also, Maelstrom Wanderer doesn't care about MLD as much as you might think. The trick is to play like 32+ ramp cards. That much ramp density lets you recover from MLD much better than most decks. Also, if you already have MW out, the odds of your opponent using Armageddon is pretty low. You have a 7/5 out that is going to kill them very quickly. Honestly, cascading into Wildfire, Sunder or Jokulhaups is pretty freaking awesome, and wins tons of games.
If I'm sitting in a pod and in the first two turns I see around 4-5 shuffle effects between the players, I'm getting really worried. If I see cards like Mox Opal, Preordain, or Mystic Remora I would assume I'm playing against some tier 1-2 decks. Kaalia probably isn't going to cut it unless you can play something like a Null Rod or Rest in Peace or Suppression Field. So you might as well play those cards.
Except for Mishra's Workshop. Not that card. Any card but that card.
If I am going to sit down to play a game with you, I want to play against the deck that you want to play, not the deck you can afford to play.
Slimefoot, the Stowaway is going right into my Ghave deck, but I'm sure he would be a good commander in his own right. There aren't a whole lot of saproling cards in Magic, but I hope this set comes out with another boon or two for that deck.
Also, O Captain, My Captain is awfully purdy. Jhoira can command me anywhere she pleases.
Didn't say it was a good combo lol. This is for the memes.
With Brago, King Eternal you don't need extra mana the turn he comes down, but Brago doesn't really need help to win with 5 mana.
Whatever you build, for starters I would start with 35 lands, around 10 ramp spells, and some card draw. After that, find cards that work well with your commander, and prioritize those. After that some removal/gravehate and that should be enough to play some of your first games.
I would recommend a pro-active strategy to a beginner, rather than a controlling style. It doesn't have to be 'attack with creatures' but it should be something you are working towards, not trying to prevent the opponent from doing. Push towards a goal.
Pick a commander with 2 or 3 colors. One color limits you a bunch, and 4-5 colors gives huge consistency problems when building on a budget.
Some cool commanders to consider, Maelstrom Wanderer, Marchesa, the Black Rose, and Tasigur, the Golden Fang all fulfill the requirements above, and are quite fun to play.
One small recommendation, format your decklist not by alphabet, but by card type or function. Sorting by cmc inside also makes it much easier to give critiques for decks.
You can also replace Eldrazi Displacer with Brago, King Eternal, which is pretty sweet.