Axio, Winged Knight of Order

First-Strike
Whenever you cast a spell you may pay {w/u}{w/u}, if
you do exile target non-land permanent. when Axio,
Winged Knight of Order leaves the field return all permanents exiled by Axio under their owner's
control.
Axio, Winged Knight of Order gets +1/+0 for each
card exiled by his effect.