Case of the Gorgon's Kiss
The clause "dealt damage this turn" is what turns a one-mana kill spell into a combat-dependent one: this doesn't remove a blocker before the block, it cleans up after damage has already happened, which means it wants a board where trades and burn have softened something up first. That gating is the price for stapling removal to what eventually becomes a 4/4 deathtouch-lifelink body. The solve condition rewards the same graveyard-churning game the removal half thrives in, since combat and sacrifice that put three creature cards into graveyards flip the Case at the beginning of your end step whether or not you engineered it. The design is honest about the sequence: you buy the removal on entry, you spend a turn (or several) grinding, and the enchantment quietly graduates into a creature that both blocks anything profitably and drains life back. The deathtouch-lifelink combination on a body that only exists after a bloody turn is a small piece of self-referential design: the card asks you to make the board messy, then rewards you with a threat that turns every future block into a lethal, life-swinging exchange. It is a slow flip by design, but the floor (a conditional kill for one black mana) never sits idle, and the ceiling arrives without further investment.
