Izzet Keyrune is a uncommon Artifact card from Return to Ravnica (RTR), collector number 230. Current market price: $0.26 (foil $0.34), TCGplayer market prices via Scryfall.
{T}: Add {U} or {R}. {U}{R}: Until end of turn, this artifact becomes a 2/1 blue and red Elemental artifact creature. Whenever this artifact deals combat damage to a player, you may draw a card. If you do, discard a card.