Quote Originally Posted by Sauteed View Post
Nah, that was all some one I won't mention, but he was the guy we wound up fighting anyway. He sucked them up in order to power himself.
We used white auracite to kill Igeyorhm, and were forced to let Lahabrea get away—we only had enough for one Ascian, not two. But Lahabrea wasn't quick enough, and Thordan betrayed him, feeding his soul to Nidhogg's (second) eye in Ascalon.

Emet-Selch wasn't even introduced at that point—his first appearance is late in Stormblood. And his death, too, involved white auracite. Specifically, Thancred broke up the piece Urianger brought with for the fight into shards and impaled him with them. There's even an item in-game referencing this: The token dropped from clearing Hades EX is explicitly one of the shards used to bind him in place.