Instead of egi glamour add an egi skill that lets you summone very primal in the game that auto attacks and does a finisher/big attack just like bahamut.
You won't have to animate, you won't have to do anything besides just adding an ifrit, shiva, titan, levi, and ramuh button that we can drag to hotbar that acts exactly the same way as bahamut's with the same potency/auto attack and finisher.

No more ps3 limitations excuse...