Devoted Combo wants to chain mana dorks and hit an explosive Craterhoof Behemoth or Agatha's Soul Cauldron turn; Consign to Memory is dead against most of their colored creature spells but can counter triggered abilities as well as rare colorless spells, so keep the count modest and lean on discard. Dauthi Voidwalker is the real star here, exiling their graveyard-bound cards (denying Tyvar-fueled recursion) while applying shadow pressure they struggle to answer. Prioritize Thoughtseize and Fatal Push, already in the maindeck, to strip their key combo pieces before they assemble the engine.