Physical immobilization. Yes, it could happen that way. By leaving the body incapable other abilities would naturally rise to take their place. In this case, magic. Of course, Even can't help but wonder whether or not the physical incapability were new would affect the Heartless. But this too is something he can't test, and something that would be frowned on in most worlds. Such is the life of a scientist, not that the worlds need any more Heartless.

Still, he considers the problem as he makes his way through what Aeleus has brought him. Without tests, there can be no certainty, short of asking all the wrong sorts of people. But then again, that usually all a theory is. A guess that makes logic sense.

"It would be easier to tell for certain with some proper data, but I doubt we'll be able to get it. Not with the worlds as they are."