Two-Headed Giant is a rare Creature — Giant Warrior card from Dominaria (DOM), collector number 147. Current market price: $0.26 (foil $0.49), TCGplayer market prices via Scryfall.
Whenever this creature attacks, flip two coins. If both coins come up heads, this creature gains double strike until end of turn. If both coins come up tails, this creature gains menace until end of turn.