Cabal Therapy is a uncommon Sorcery card from Eternal Masters (EMA), collector number 83. Current market price: $4.94 (foil $6.90), TCGplayer market prices via Scryfall.
Choose a nonland card name. Target player reveals their hand and discards all cards with that name. Flashback—Sacrifice a creature. (You may cast this card from your graveyard for its flashback cost. Then exile it.)