Bebop & Rocksteady is a rare Legendary Creature — Boar Rhino Mutant card from Teenage Mutant Ninja Turtles (TMT), collector number 241. Current market price: $1.59 (foil $3.51), TCGplayer market prices via Scryfall.
Whenever Bebop & Rocksteady attack or block, sacrifice a permanent unless you discard a card.