What is The Eye doing?

[Nalien]

Can I mention that the Eyes have answered to THREE people at the same time?

Estinien, WoL, and Thordan.

Is this the case? Seemed more like he was just using it... If you have to be chosen in order to use it then I'm even more confused by it, given how Estinien effectively crippled Nidhogg with it... Why give your enemy that much power over you? Heck, the Eye wasn't even meant to be carried around, it was kept in the Vault until Estinien stole it, indicating that the Azure Dragoons never really directly used the Eye...

I'd need to go back and check the cutscenes as well, but I don't think the Eye reacted to Thordan in anyway... It clearly reacted to us when we first met Estinien, but the only animation I recall of it with Thordan was him turning it into a sword and it absorbing Lahabreaether...