Aincrad, Izzet Citadel

Convoke
Flying
Defender
{t}: Add {u/r} for each creature you control.
{x}, {t}: Aincrad, Izzet Citadel deals {x} damage
to each opponent and each creature and planeswalker they control.
Aincrad, Izzet Citadel has hexproof as long as it's untapped.