He most likely takes on some of the traits of the host he was possessing, in this case Leah.
It's not a valid reason, it's just a short-story-cut effect. Ok, some guy must have say that like a joke "And what if we make a female Diablo ? You know he came from Leah after all", then others didn't understand the joke and they approve him a lot, with claps and "astounding" comments.
Damn. It is Diablo we are speaking, not a pitiful ghost spirit without strength. He can came out from a car if he want (yeah, car have spirit, see Transformers) he will not be like a car.
Anyway, this Leah exorcism was a bad idea, not in the spirit of previous games to make suffer innocent girls.
Edited by obiwan#2455 on 9/23/2012 4:53 AM PDT
Then why does Decard Cain tell us that Andarial was the only female evil. "lore books Act 2"
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