UW/Esper Control
IN:
3 Agonizing Remorse
2 Plaguecrafter (if you see Dream Trawler game 1)
OUT:
2 Blood-Chin Rager
3 Dire Tactics
REASONING:
Dire tactics is garbage against Dream Trawler, and they're not going to have enough blockers for menace to do anything. Agonizing Remorse strips removal or threats from their hand, and Plaguecrafter can actually answer Dream Trawler. Save it until turn 2 or 3, depending on what you can play from hand, to maximize the chance that you actually hit a wrath or Elspeth Conquers Death. In this matchup, I think you need to go as hard as possible and try to kill them quickly.
Inverter
IN:
3 Agonizing Remorse
OUT:
2 Blood-Chin Rager
1 Dire Tactics
REASONING:
You need them to be gone as fast as possible, and have a lot of removal to play around. Blocks shouldn't be a huge problem, and exiling Oracle or Inverter before they can use them is much better than letting them resolve. Especially Oracle.
Breach
IN:
3 Agonizing Remorse
1 Soul-Guide Lantern
OUT:
3 Dire Tactics
1 Dauntless Bodyguard
REASONING:
I actually don't have any breach in my meta, so I'm pretty inexperienced with it, but I don't think expensive targeted removal is very good and I don't think you need to worry so much about targeted removal from them. Swing in really hard and use your main deck / sideboard graveyard hate to the best effect you can.
Sultai Delirium
IN:
3 Agonizing Remorse
OUT:
2 Grim Haruspex
1 Oketra's Avenger
REASONING:
Mardu Woe-Reaper is main-deck graveyard hate, but Uro is a miserable card so we really need to have our bases covered against it. Dire Tactics can exile him, so we're not as bad against this strategy as I'd initially feared we would be. Massacre Girl still positively wrecks us, and Liliana the Last Hope is good against us, so beware of that and take them out of your opponent's hand, because boy are they tough once they resolve. Grim Haruspex and Oketra's Avenger come out for being expensive and mediocre cards in general, respectively.
Sun-Gun Combo
IN:
2 Revoke Existence
3 Fatal Push
1 Dire Tactics
OUT:
2 Dauntless Bodyguard
4 Mardu Woe-Reaper
REASONING: Dire Tactics can already answer Heliod a lot of the time, but Revoke Existence is a great catch-all to be sure we can get him gone for good. We will just lose to some of their creatures (Big-butted Daxos, Swole Ajani's Pridemate) so we need to be able to dictate the pace of this matchup, I think. Their removal will get around indestructible, and is bad against us tempo-wise anyways (expensive Oblivion Rings), so Bodyguard is out. Mardu Woe-Reaper attacks very poorly into their stuff and we don't care about their graveyard, so he's out too. We are alright slowing down a bit in this matchup, I feel, if we can control the board.
Monored Aggro
IN:
3 Surge of Righteousness
3 Fatal Push
OUT:
1 Dire Tactics
2 Grim Haruspex
3 Arashin Foremost
REASONING: They can't get stuff back from the 'yard, and gaining life off of our removal is great. Fatal Push is super cheap and hits almost everything we care about. Surge hits the rest. Dire Tactics... only thing we care about exiling is Hazoret. I think it makes sense to cut one, because it is relatively expensive, and sometimes damages us, and we have quite a bit to bring in. We're going down Haruspex, because while drawing cards when you trade against an aggro deck is great, getting one of the most expensive cards in your deck killed by a shock is garbage. We're shaving most of our Arashin Foremost for the same reason, as even though it's a great card, at base it dies to shock and even an anthem can't save it from lightning strike.