Bleak Coven Vampires is a common Creature — Vampire Warrior card from Scars of Mirrodin (SOM), collector number 55. Current market price: $0.17 (foil $7.65), TCGplayer market prices via Scryfall.
Metalcraft — When this creature enters, if you control three or more artifacts, target player loses 4 life and you gain 4 life.