Quote Originally Posted by Tonkra View Post
the upcoming Bismarck (which wasnt a "primal"/summon in any FF)
it is (in FF6, it replaces Leviathan as the water esper. I had to check it back as when reading you, I feared I had been confused with Golden Sun)

Ravahna is the only one which never appeared in the FF series (it's a regular enemy in vagrant story but that's all)

Point taken on the other stuff