Anzo Kharlo, Fatebringer

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever Anzo Kharlo attacks and isn't blocked, you may exile an instant or sorcery card from your hand encoded on him. If you do, for the rest of the game, whenever Anzo Kharlo deals combat damage to a player, you may copy the exiled card and cast the copy without paying its mana cost.