Cabal Therapy is a uncommon Sorcery card from The List (PLST), collector number EMA-83. Current market price: $5.46, 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.)