Aetherbolt

Crystallize {r}{r}{r}(When you successfully cast this
spell from your hand, exile it and create a Crystal
artifact token with "{r}{r}{r}, Sacrifice this permanent:
You may cast Aetherbolt from exile for {0} until end
of turn.")
Return target attacking or blocking creature to its
owner's hand. If Aetherbolt was cast from exile,
it does 3 damage to that creature's controller.