Dress Down strips all abilities from creatures, turning off Basking Broodscale's adapt-triggered Eldrazi Spawn generation, buying crucial tempo against their ramp plan. Surgical Extraction can strip every copy of a key colorless threat like Devourer of Destiny or Basking Broodscale from their deck and graveyard once Thoughtseize discards one. Nihil Spellbomb doubles as graveyard hate against their Malevolent Rumble self-mill and as a late cantrip. Stubborn Denial and Drown in the Loch are cut since we're rarely ahead on board or graveyard count early against a deck that ramps past our counters; keep Fatal Push and Thoughtseize for their creatures and nonland setup spells like Ancient Stirrings.

Brotherhood's End's 3-damage sweeper mode wipes their whole early board — it kills Dragon's Rage Channeler, Monastery Swiftspear, and Slickshot Show-Off before prowess or delirium pumps them out of range, resetting the game after they've dumped their hand. Consign to Memory's replicate mode mops up Mishra's Bauble and any other colorless spells they play, and can snipe the token-creation trigger off Cori-Steel Cutter's Flurry ability. Cut Stubborn Denial and Drown in the Loch since Stubborn Denial is easy for them to pay through, and a fair 1-for-1 doesn't keep pace with their card advantage from Expressive Iteration. Keep Fatal Push for their creatures and Thoughtseize for Cori-Steel Cutter and their key noncreature spells.

Boros Energy floods the board with cheap creatures, and Brotherhood's End's 3-damage sweeper mode kills Ocelot Pride, Ragavan, Seasoned Pyromancer, Ranger-Captain of Eos, and every Warrior/Cat token they generate, resetting the board after they overextend. Harbinger of the Seas turns their nonbasic lands (Sacred Foundry, Arid Mesa, Flooded Strand, Marsh Flats) into Islands, cutting off the red and white mana they need for Galvanic Discharge and their planeswalkers. Stubborn Denial is unreliable since we rarely have a 4-power creature online early against their fast starts, and Street Wraith's swampwalk is irrelevant against a Plains/Mountain-based deck. Keep Thoughtseize and Fatal Push to proactively strip Blood Moon and their key threats before they take over the game.