Quote Originally Posted by Quor View Post
Kain was "mind controlled" twice over the course of FF4 while Estinien has been "mind controlled" (or possessed if you will) once, during Heavensward.
Actually.....

Estinien has already been possessed twice - the first time being during the (honestly rather confusing) climax to the ARR dragoon quests. So he doesn't need to be possessed again by Zenos to fulfil that historical allusion.

Also I'm not sure about him destroying Nidhogg's eyes being an opportunity for Zenos to posess him. Zenos's soul would have most likely been still in his body until it transferred to the Elezen soldier? Since he dies *after* we beat Shinryu, and his body doesn't seem to be in the vicinity of the Eyes when Estinien turns up. Although that's a different kind of plothole if they already cleared the bodies and left the Eyes there - but perhaps they simply weren't looking for them, and Estinien was.