Sangromancer is a rare Creature — Vampire Shaman card from Mirrodin Besieged (MBS), collector number 53. Current market price: $1.13 (foil $10.01), TCGplayer market prices via Scryfall.
Flying Whenever a creature an opponent controls dies, you may gain 3 life. Whenever an opponent discards a card, you may gain 3 life.