Ultimate Alliance

White removal answers big threats by exiling them, bouncing them, or tucking them away; pointing raw damage at a creature has almost always been red's department. This carries no fixed number of its own, drawing its damage entirely from the width of your board, which lets white borrow burn's job without stepping outside its lane. In a token-heavy or go-wide shell the effect scales from a single point that clears a chump to a clean kill for the largest thing across the table, all for one white mana. The sizing does its own balancing work: against a control deck holding one blocker it does almost nothing, while in the deck already flooding the battlefield it kills anything. The instant-speed clause is the sharpest part of the design, letting you hold up removal that grows every turn your board does and fire it after combat math is locked, into a declared attacker or blocker whose size you already know. It rewards the same board development a wide white deck wants to do anyway, then converts that development into a removal spell whose ceiling is the size of the army you built.