Kalastria Highborn

The engine that turned Vampire tribal from a beatdown shell into a drain machine. The reward is structured around death rather than combat: each Vampire that hits the graveyard, including this one, lets you pay a black mana for a two-point swing that crosses the table and refills your own total. That conversion of tribal attrition into direct life loss is what made the deck dangerous from behind, where most aggressive decks fold. Pair it with cheap sacrifice fodder and the board doesn't even need to attack to close: every chump block, every removal trade, every creature sacrificed for value becomes incremental reach the opponent can't profitably interact with. The optional payment is the discipline here: you choose which deaths matter, so a flood of small triggers never forces you to spend mana you don't have, and the ability scales cleanly from a single Vampire dying to a board wipe filling the graveyard with a dozen of them at once, each one a separate for a separate two-life drain. Because each trigger picks a target player, you can also direct the bleed at whichever opponent is closest to dying rather than spraying it evenly. The body is incidental; nobody runs this for the 2/2. It is run because it converts a tribe's losses into a clock, and because that clock keeps ticking through removal that would shut off a creature-based one.