Quote Originally Posted by Eloah View Post
Eden spoiler
In E8 Ryne becomes the vessel for Shiva, similar to Ysayle. However, unlike Ysayle she loses control of herself. Originally, possession of the Echo was thought to be the reason for Ysayle's maintained control. However, it was proven that the summoning of a Primal into one's self does not mean they lose control, as both Thordan and Yotsuyu still retained their sense of being. But Ryne is not as experienced in life as the other three individuals, so that is probably the main reason.
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Did Thordan and Yotsuyu keep control though? The goals of what they summoned were so close to their own that I doubt we'd notice either way?