I think it is actually Meteorain. But...

BG-57 is right!

A power that seems to overflow. -> Limit Break

And a cloud looms over as if it had wings. -> Cloud jumps and hovers in the air.

Then with an ability from out of this world, -> They are meteors.

all my enemies are crushed with a single swing. -> Cloud swings his sword once and the meteors come down.

BTW the tweak I was going to do was change the second line from

And a cloud looms over as if it had wings.

to

And Cloud looms over as if he had wings.

Your turn BG-57