Fiend of the Shadows is a rare Creature — Vampire Wizard card from Dark Ascension (DKA), collector number 62. Current market price: $0.23 (foil $0.43), TCGplayer market prices via Scryfall.
Flying Whenever this creature deals combat damage to a player, that player exiles a card from their hand. You may play that card for as long as it remains exiled. Sacrifice a Human: Regenerate this creature.