Doomsday Specter is a rare Creature — Specter card from The List (PLST), collector number PLS-103. Current market price: $0.36, TCGplayer market prices via Scryfall.
Flying When this creature enters, return a blue or black creature you control to its owner's hand. Whenever this creature deals combat damage to a player, look at that player's hand and choose a card from it. The player discards that card.