Question: Ianne's Right Eye Rank 100 Does What?

I recently got Ianne’s Right Eye to rank 100 since I was so curious, but I don’t know what it does. All that happened was it displayed “Ianne has returned from the dead!”

(1) I feel it does something that I don’t know about
(2) Not implemented yet in early access
(3) Hopefully not nothing (would be a bummer)

Ianne pops up in a realm. No spoilers on what they do.

Aha. Found him in an Itherian realm. I almost missed him “Smith Creature” since he looked like the enemy creatures, but noticed he was the only one not moving. He gave me wonderful stuff, and I immediately died after in the boss room.