Breeches, the Blastmaker is a rare Legendary Creature — Goblin Pirate card from Outlaws of Thunder Junction Promos (POTJ), collector number 197s. Current market price: — (foil $0.42), TCGplayer market prices via Scryfall.
Menace Whenever you cast your second spell each turn, you may sacrifice an artifact. If you do, flip a coin. When you win the flip, copy that spell. You may choose new targets for the copy. When you lose the flip, Breeches deals damage equal to that spell's mana value to any target.