Izzet Keyrune

Izzet Keyrune {3}

Artifact
{T}: Add {U} or {R} to your mana pool.
{U}{R}: Until end of turn, Izzet Keyrune becomes a 2/1 blue and red Elemental artifact creature.
Whenever Izzet Keyrune deals combat damage to a player, you may draw a card. If you do, discard a card.
Set: [RTR] Return to Ravnica ( U · #230 )