Golgari Rotwurm

A 5/4 for five reads as a fine if unremarkable curve-topper, but the body is the cover charge for the real engine: a repeatable life-loss outlet that turns any creature you control into a point your opponent loses, at the cost of a single black mana. One-shot drains convert a card into an outcome and stop there; this converts a stalled board, a flock of expendable tokens, or a recursion loop into a slow clock that combat cannot block and that life-gain races only delay. The discipline lives in the activation, not the body: each point demands both a creature and a mana, asking for a board built to be spent rather than a single bomb to protect. Because the sacrifice is part of the cost, the outlet feeds whatever death triggers, sacrifice triggers, and graveyard payoffs you have lined up, regardless of which player the life loss points at; the "target player" clause is generous, but the chains fire on the sacrifice itself, not on who loses the life. As a black sacrifice outlet that doubles as a win condition, it sits among the structural ancestors of the dedicated aristocrats payoffs that arrived once the archetype had a name.