Originally Posted by
LineageRazor
Emet-Selch explicitly does not need to take over a person in order to have a physical body. He does it with the clones on the Source because it's easier and more convenient. Did he do so on the First? That is never made clear. Certainly, he does not hold the lives of the First's residents in high regard - but he WAS trying to curry favor with the Warrior of Light and his allies. That could well be worth spending the extra effort to create a solid body from Aether (as the Scions themselves did), rather than co-opt some shmuck. Or some shmuck's corpse.
He might have killed someone for his current body, but there's a lot of reasons why he might not have. And whether he did or not, the body he presented to us in his dying scene probably WAS created from nothing (or might not even have been a solid body at all), given that he cast off his flesh during the fight. Seems like a waste of effort to put it back on again, if it was even in any condition to be put on again!