Tainted Specter is a rare Creature — Specter card from Mirage (MIR), collector number 148. Current market price: $0.56, TCGplayer market prices via Scryfall.
Flying {1}{B}{B}, {T}: Target player discards a card unless they put a card from their hand on top of their library. If that player discards a card this way, this creature deals 1 damage to each creature and each player. Activate only as a sorcery.