. . . Couldn't I just use it, have it go over to the opponent's field, then, when it comes back to me, waste all my Entropy so that I end up destroying the card, and gaining all the opponent's creatures? It's not hard to set up AT ALL.
EDIT: Didn't see the part where, if you gain control of creatures, they stay on the same side of the field. However, this could be used for major abuse.