Golgari is loaded with discard (Thoughtseize, Duress-adjacent hands) and cheap removal (Fatal Push, Abrupt Decay, Go for the Throat), so Knight of Grace's hexproof from black and extra power dodges a huge swath of their removal suite while pressuring Sheoldred. Nahiri, the Unforgiving gives you card selection with its loot and temporary recursion that doesn't care about their one-for-one removal: its 0 ability exiles a creature or Equipment card from your graveyard (with mana value less than Nahiri's loyalty) and makes a hasty token copy, but that token is exiled at the beginning of the next end step, so it is a one-turn burst rather than a permanent rebuy. Wear // Tear's enchantment half answers Unholy Annex // Ritual Chamber before the Demon token comes down. Skrelv and Super-Soldier Serum are cut since they're low-impact against efficient removal.

Selesnya Company's clock relies on efficient creatures like Skyclave Apparition and Archon of Emeria, so Redcap Melee's 4 damage removal cleanly kills most of their key threats at instant speed (most of their creatures are nonred, so expect to sometimes pay the land-sacrifice cost, but the tempo gain is worth it). Wear // Tear can destroy Archon of Emeria (an enchantment-adjacent problem for your aggressive curve) is actually a creature, so instead target cards like Sheltered by Ghosts if they bring it in, or their own enchantments; more importantly it answers any removal auras they might run. Skrelv's slow toxic plan is outclassed by their superior board development, so swap it for hard removal. Chainsaw is replaced since Redcap Melee is a cheaper, more flexible answer to their early creatures.

Izzet Cauldron is the Vivi Ornitier and Agatha's Soul Cauldron deck. It runs Vivi Ornitier, Quantum Riddler, Fear of Missing Out, Stormchaser's Talent and Proft's Eidetic Memory, backed by Torch the Tower and Boomerang Basics. Surge of Salvation gives you and your permanents hexproof for a turn, which blanks a targeted Torch the Tower or Boomerang Basics on your equipped threat. It also prevents damage from red sources to your creatures, and Torch the Tower is red. Wear // Tear is well placed here. Wear destroys Agatha's Soul Cauldron, and Tear destroys Proft's Eidetic Memory, Stormchaser's Talent or Fear of Missing Out (an enchantment creature), or you can fuse both halves. Skrelv is a low-impact 1/1 here, so it's the easy cut. Shadowspear's ability to strip hexproof and indestructible has almost no targets against their permanents, which makes it the easiest equipment to trim. Your mainboard Chainsaw is also a good answer to an early Vivi Ornitier. Keep pressuring quickly, because their key permanents like Vivi Ornitier and Agatha's Soul Cauldron take time to take over the game.