Ynarrig, the Endless Storm

Flying, haste
Prowess
Whenever Ynarrig, the Endless Storm attacks,
look at the top X cards of your library, where X
is Ynarrig's power. You may cast a instant or
sorcery spell from among them without paying
it's mana cost. If that spell's mana value is less
than or equal to Ynarrig's power, copy it. You
may choose new targets for the copy.