So, I've noticed that the developers have thought of adding a Ramuh Egi and Leviathan Egi, but I guess they don't know how yet. My thoughts on a solution come from the chocobo mount, particularly, its gear. The Chocobo has three categories of gear to apply to it. So maybe one could unlock more Egi and manage them in a menu similar to the chocobo gear. They would be divided into Melee, Casting, and Tanking (as usual). Now that they could be organized, more quests would appear, allowing you to unlock more, maybe even including the summons that became dungeon bosses(Siren, Fenir, Diabolos, etc.)! And for an aesthetic touch, the hotkey icons would have a different design for each Egi. Perhaps Scholar and Arcanist could benefit, too! Like Scholar could unlock fairy king Oberon and queen Titania, and I have seen data for different colored Carbuncles, so who knows? Drop a comment (if you're interested) and thanks for reading.