rb carpet can hit surrounding ground mobs.
you need to hit at least 1 standing or a mob in air.
you can try it with turtles or pf so you get what i mean.
Video of it, using a online recorder so the quality isn't that nice.
EDIT: What i mean about hitting ground mobs is when the second rb carpet hit takes effect [regarding the bumpy combo], sometimes you can kill the mobs on the ground.
So it can be a range ground damager just that you need an end target.
It work the same for rb dfist.
Just hope they don't patch it away