Quote Originally Posted by Kalise View Post
Please, if you're going to write fanfiction, keep it out of actual discussions.

Nowhere in the lore are Egi's relevant to Carbuncles and our ability to summon them.

The only "Upgrade" is a mechanical one to just simply remove the ability to summon Carbuncles and "Replace" the Summon I and Summon II skills with Garuda-Egi and Titan-Egi.
It's not fanfiction, that's actually what happened. Ludonarrative is still narrative.