yoshikage_kira9
There are two things that could be done with awakening. The first, is to erode, convert anything around him into sand, like Doflamingo with his strings. And the other, is to make the whole place where he is, arid, as in no water, vapor or anything like that in his surroundings; after all, what made Crocodile unique, is not so much his control over sand, but that even water, moisture and vapor ceased to be where he wanted it.