U/W Control
Out:
2x Korvold, Fae-Cursed King (Too expensive)
4x Fatal Push (... unless they're running babby Jace, this is the deadest card)
In:
2x Cindervines (Significant ping damage, blowing up the occasional D sphere or Elspeth Conquers Death is practically a bonus.)
2x Liliana, The Last Hope (Comes down early and threatens to win the game)
2x Agonizing Remorse (another discard spell, also hits the occasional yard'd threat. We struggle to beat the new sphinx, so this is a necessary evil)
BUG Delirium
Out:
4x Mayhem Devil (I might be wrong here, but there aren't many things we care about pinging down {Except Jace, but we have Fatal Push for that} and we need to hit five slots for our big sideboard cards in this matchup. Considered shaving bits of the cat combo instead, but I think there is real value in keeping that around. I think the card draw of Haruspex is better, so he's staying in instead)
2x Kroxa (Not as good as Uro head-to-head, and frankly just helps them for the most part. We don't fill the yard to cast him multiple times, and we cut our Mayhem Devils, so sac shenanigans are less valuable. You don't want them getting to choose how to turn on delirium, and a one-shot discard they get to decide how to use hurts more than it helps. Much better things to fill both of these slots.)
In:
2x Klothys, God of Destiny (rips stuff out of the yard, turns off their delirium, 4 point life swing)
2x Leyline of the Void (Doesn't die to Abrupt Decay, makes Uro much worse, can be a lucky turn 0 play)
2x Agonizing Remorse (turn off Delirium, rip a giant spider or Emrakul out of hand, or exile Uro... just all around a good play. Very possible it's better than Thoughtseize in this matchup, as the extra mana doesn't matter a ton and we have plenty of things to do on turn 1 anyways.)
Heliod Combo
Of note in this matchup, we have opportunities to sac things before damage to blank lifegain. Doesn't help much when we're getting combo'd, but in the midrange fight our ovens can be a surprising boon.
Out:
4x Thoughtseize (They're basically an aggro deck with combo pieces. I'm really not sure about this, as Heliod is a beating we don't have many answers to, and the combo will kill us, but 2 life is a lot when sometimes it whiffs and we just get a pooper like Daxos or Thraben Inspector)
In:
2x Infinite Obliteration (Gets rid of either half of the combo, setting up a midrange battle that I think we can win)
2x Unravel the Aether (Shuffles Heliod back into the deck at instant speed. Could be Mystic Repeal, though this also hits artifacts in other decks, so I think it's worth the extra mana)
Ensoul Artifact
Out:
3x Grim Haruspex (We need to make some cuts to get good sideboard cards in, and I think this guy is just filler enough to take him out. Mayhem Devil, competing for the same slot, can machine-gun down their army of random 1/1s, whereas Haruspex can sometimes draw a card... I think Devil gets the nod on the virtue of helping stall out games for us better.)
1x Gilded Goose (We have plenty of things we'd rather do early game in this matchup than deploy an 0/2 that can eventually grind value. No great cuts here, but we need one more of our sideboard cards in, so the goose is loosed)
In:
2x Cindervines (destroys either the enchantment or the target depending on what's possible, and also sometimes pings them for fun)
2x Unravel the Aether (puts a citadel into their library)
Bant Spirits
Out
3x Grim Haruspex (Card advantage is great, don't get me wrong, but he's just a juicy Queller target that also attacks poorly, whereas devil-bro pings spirits to death basically for free)
In
2x Liliana the Last Hope (Absolutely destroys this matchup)
1x Witch's Vengeance (see above)
