Wakedancer

Morbid pays out exactly when you want it to and never when you don't, and this card shows the keyword at its most arithmetic: clear the conditional, and a 2/2 body brings a second 2/2 with it. The whole exchange resolves in a single window. The trigger checks once, as the creature enters, whether something died earlier this turn, and either the Zombie appears or it doesn't. There is no recurring engine here, no death-trigger that keeps firing: you get one snapshot, evaluated once, and the deckbuilder's job is to make sure something has already hit the graveyard by the time this lands. That tends to mean the body wants to arrive late, after a trade or a sacrifice, which pulls it toward decks already generating dead creatures as a byproduct of how they play. Drop it on an empty board and it is a plain 2/2; drop it after a swing-back, and it doubles its own footprint for free. Morbid as a mechanic was an answer to making graveyard-matters payoffs feel proactive instead of passive, rewarding aggression rather than waiting on the opponent. Few cards carry that intent more plainly than this token-maker, which asks only that you have already been fighting.