New boss - bahamut. Just spams 1 spell, bug?

[Lumi]

After more 750 kill on that boss i fond it quite irritating ....he's not hard but frustrating , you do somme damage you get kill you comme back do somme damage, get kill / repeat until he's dead.

will be nice tho see at less a 1sec cold down on his megaflare or a new ability (Implus ?? an other powerful move form bahamut ) ? so he can alternate between if possible to make.

Edit note that i am juste making a proposition even if no change is make to him i will still farme the content & enjoy it !