Vengeful Bloodwitch

The word doing the work here is "another": the trigger fires whenever this creature or any other creature you control dies, so the 1/1 body is incidental to what it is actually for. Aristocrats decks have long wanted a payoff that turns their own sacrificed bodies into a clock, and Blood Artist and Zulaport Cutthroat set the template by draining every opponent on each death. This one steps back from that reach: it hits a single target opponent rather than the whole table, and that narrowing is the trade for a symmetrical one-life swing (a point off them, a point back to you) that keeps the math honest in a duel while stabilizing a deck spending its creatures as ammunition. Because the trigger counts its own death, even a lone Bloodwitch traded in combat or thrown to a sacrifice engine squeezes out one last drain, so it never becomes a dead card once the graveyard machine is running. The value lives in stacking it under a token producer or a recurring sacrifice source, where each death is worth two life of swing and the increments add up faster than an opponent expects. Among the death-payoff creatures that reward treating your own board as fuel, it earns its slot by being cheap enough to land before the machine around it is fully assembled.