Logically this wouldn't make much sense, but yea I like the idea nevertheless, great idea!! ^_^
how wouldnt it make sense? you are an elemental, you control the gravity surrounding your creatures
Well you just removed gravity and now they're just floating like they would in space. They'd have trouble adjusting and wouldn't know how to move about accordingly. However, for the airborne creatures the air would still surround them so flying about with their wings wouldn't be a problem.
or youre controlling the gravity, so you could manipulate the gravity so that they can attackk....
