Just force yourself through the omega ruins. Or continue to the next story point. Mostly the same monsters as omega ruins, but easier.

My aeons are all about equal now I guess. That's what you get when you power Yuna up, you know.

(except anima has haste and shell for pwnzing jumbo flan, but the sisters have like, each other, and yojimbo is all doing zanmoto once in a while for me now)