Atmosphric Rift

Target creature you control deals damage equal
to its power to each creature target opponent
controls. Then, sacrifice that creature.
Wamuu uses the tubes in his torso to inhale and
compresses huge amounts of air in his lungs. The air
is then released through a slit on the horn of his head,
causing it to become sharp enough to cut stone,
which flails about, much like a whip.