Fuse Abilities Submissions!

Since Odin teaches Meteor, we could give Odin/Raiden "Comet" (totally not ripping off FF7 here...), which could be an upgraded but similar spell. A (reasonably) powerful, non-elemental full party attack that pierces defenses would be a good thing to throw on an "ultimate" Esper.

Atma Weapon has some good possibilities as well, since he has a wide variety of attacks (including Meteor, for that matter...) and he is safeguarded by actually being an endgame boss, so players wouldn't get it too early.

For now, I'd guess that Golem wouldn't need Regen to be effective, but at some distant point in the future when we play test this, I suppose we should keep the possibility in mind. If Golem seems lame, that would be a good way to buff him up.