I'm on my first playthrough of the game and i have got the ragnarok and should be going to lunatic pandora and the like but im trying to get the ultimate weapons.

Ive got the Lionheart and Zells funny sounding one, but i need to know where i can find a Force Armlet for Rinoas weapon. I dont know whether i am good enough to fight the ochu thingys on the island closest to heaven, but i heard you can refine 10 Mag-J scrolls or something but i havent got that ability!

Any help would be great thanks!!