Quote Originally Posted by Iscah View Post

Also, being limited to a side story quest, Alexander would be unlikely to get added as an egi.
Coil is also a side story and they bent themselves backwards to retcon a reason in for Phoenix to exist. SE hasn't cared about Summoner lore in years anyways, they can just throw whatever in and as long as it looks cool people will go nuts for it for another 4-5 months before realizing what a vapid mess it is once again.