Quote Originally Posted by Kaiser-Ace View Post
Ifrit stated the reason he couldn't temper us was because we had been "Chosen by another"
I think that a tempered soul can still be tempered again, but only by a being of higher power.

Louisoix was tempered by Bahamut even though he himself had been transformed into the primal Phoenix. That would mean that primals have the capability of not only taking over someone that has already been tempered, but they can temper each other as well. Or at least, that's what I'm guessing. Garuda was able to power herself up by draining the captured Amalja and Kobold that her people had brought to her.

In theory, no one could ever re-temper someone chosen by Hydaelyn herself because she's the highest power that exists. Maybe Zodiark could do it, but Zodiark and Hydaelyn are reflections of each other, so maybe not.