Kozilek's Return

A board wipe that arrives twice, and the gap between its two modes is the whole design. The front face is a modest instant-speed sweep: two damage to every creature, enough to clear mana dorks and tokens but useless against anything with real toughness. The ceiling lives in the graveyard clause. Cast an Eldrazi creature spell of mana value seven or greater (the threshold is the gate), and you may exile this from your graveyard for a five-damage second wave, large enough to function as a genuine reset stapled onto a threat you were already deploying. That structure rewards a deck built around colossal colorless monsters: the second wipe stops being a card you spend a turn on and becomes a free attachment to your ramp payoff, clearing the path the same turn the threat lands. The devoid keyword makes the card colorless, thematic for an Eldrazi spell wearing a red mana cost, but it does nothing for the graveyard trigger; that ability cares only that an oversized Eldrazi creature spell is being cast, not what colors this instant has. The result is a removal spell whose payoff is gated behind a deckbuilding commitment most decks cannot make: play the giants and the recur is one of the cleaner tempo swings going; leave them out and you have a forgettable two-damage sweeper. It is engineered for the seam where ramp meets reach.