Mono Red Madness races with Fiery Temper (cast via madness from exile, so graveyard hate is irrelevant), Lightning Bolt, and Guttersnipe/Kessig Flamebreather triggers, so lifegain and cheap board control matter more than big top-end. Weather the Storm gains 3 life per copy (more with storm count) to blunt the burn clock, and Fiery Cannonade sweeps their key 1-2 toughness creatures like Voldaren Epicure and Guttersnipe. Cut the clunkiest top-end (Annoyed Altisaur, Sagu Wildling, Bannerhide Krushok) since this matchup is about surviving to stabilize, not going bigger.

Mono-Blue Terror relies on cheap threats (Delver of Secrets, Tolarian Terror, Cryptic Serpent) that shrink in cost as their graveyard fills, backed by Counterspell and Force Spike for protection; our best plan is to play resilient threats and not get too cute into open mana. Nylea's Disciple provides a lifegain buffer against Delver/Serpent beats and adds another creature that dodges Counterspell pressure by simply being efficient. Rancor comes out since it's a two-for-one risk against a deck that can bounce back with card advantage from Brainstorm/Lorien Revealed if our threat gets removed or countered. Keep the core creature-land ramp package intact — Utopia Sprawl and Wild Growth let us deploy threats ahead of their counterspell mana.

Tron wants to assemble Urza's Tower/Mine/Power Plant off Ancient Stirrings/Crop Rotation selection to cast big threats like Bramble Wurm and Nyxborn Hydra, so our best angle is applying fast pressure before they hit critical mass. Breath Weapon deals 2 damage to each non-Dragon creature, which cleanly answers their small early blockers like Eldrazi Spawn tokens without hitting our own Dragon (Avenging Hunter). This is a small, surgical swap since our proactive ramp-aggro plan is already well-positioned against a deck with almost no interaction for our threats; keep the rest of the maindeck intact to maximize pressure.