Infernius Spawnington III, Esq. is a rare Creature — Demon Beast Grandchild card from The List (Unfinity Foil Edition) (ULST), collector number 21. Current market price: — (foil $0.26), TCGplayer market prices via Scryfall.
Flying, first strike, trample, haste This spell costs {3} less to cast for each card you've revealed this turn. When this creature enters, you may say "I'm here." If you do, it deals 3 damage to target player.