Zephyrion could transform into a massive stream of wind going at near lightspeed and slam into Perfectus with all his strength. Since that was enough for him to send Galbar spinning wildly and hurl up a ton of matter into orbit for Vulamera, I'd imagine it would really mess up a tiny moon. As in almost totally destroy this moon, not just knock it away.

You'd have a giant shower of meteorites and rubble falling down, but the damage would be much lesser and more spread out. It'd still be horrific mind you, but not apocalyptic.