Tasha's Hideous Laughter is a rare Sorcery card from Adventures in the Forgotten Realms Promos (PAFR), collector number 78p. Current market price: $5.25 (foil $6.49), TCGplayer market prices via Scryfall.
Each opponent exiles cards from the top of their library until that player has exiled cards with total mana value 20 or greater.
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