Vaevictis Asmadi, the Dire is a mythic Legendary Creature — Elder Dragon card from The List (PLST), collector number M19-225. Current market price: $2.67, TCGplayer market prices via Scryfall.
Flying Whenever Vaevictis Asmadi attacks, for each player, choose target permanent that player controls. Those players sacrifice those permanents. Each player who sacrificed a permanent this way reveals the top card of their library, then puts it onto the battlefield if it's a permanent card.