He is at the top of the tower in the Yuffie sidequest. I just need to beat him and I'm done that Wutai quest.

He got this dame Cure2 though that heals 1280 after every two Trine's I use. My Trines do like 800 so two are like 1600 but he does the Cure2 after every two turns.

I always gotta watch my health too, because out of nowhere he will use a Demi3 or a Trine.

Mind helping me on how I should beat him?