Blue-Eyes, Tyrant of the Skies

Flying, Vigilance, Ward {3}

Whenever Blue-Eyes, Tyrant of the Skies enters the battlefield or attacks, you may pay {w}{u} any number of times. For each time you do, exile up to one target nonland permanent an opponent controls.

If Blue-Eyes, Tyrant of the Skies would leave the battlefield while untapped, you may exile it instead.
If you do, return it to the battlefield tapped.