Auto: Haste, shell, protect, phoenix
Eater: Water, fire, lightning, ice
Auto med with confuseproof, beserkproof and either zombie or stoneproof(i choose stone bc it treats your party member like he's ko'd)
I have 1 of each for everybody. Status enemies like marlboro's become cake, same with any enemy that thinks they can use majic against you...hahaha. But once you have some armor like this try to get some 2X or even 3X SP weapons and you will level up like crazy.... finally if monsters are still to tough for you than do rikku's sidequest until you can get in the cactaur village where you fight up to 3 at a time(first strike + high accuracy will do the trick)