Rise of the Dread Marn

The instant timing is the whole trick, and Foretell is what pays for it. This is a spell that mines the current turn's carnage: it counts every nontoken creature that has already hit the graveyard, then converts that toll into a wall of 2/2 bodies at the exact moment your opponent thinks they have cleared the board. Cast it after a mutual combat trade, or once a sweeper has fully resolved and left the corpses in the yard, and the death count spikes just as the tokens arrive; timing is everything, because a board wipe still on the stack has killed nothing yet, and a sweeper that follows will just take the tokens down with it. The design tension is a payoff that wants creatures to die, held at instant speed so the caster gets to choose when the ledger closes. Foretell answers the practical problem such a card faces: a reactive spell is dead weight in the hand on turns when nothing is dying, so the exile-and-bank option lets you launder that idle card early for a cheaper cast later, and hide the threat behind a face-down card your opponent has to play around. The count reads both sides of the table, so a wrath you cast yourself and one your opponent commits to both feed it. It is a combat-math weapon disguised as a token maker: the number that matters is not printed on the card but written across the turn's graveyard.