Quote Originally Posted by Jowy
If you don't feel like using Mime and KotR, just set up everyone's materia like this.

Gravity + HP Absorb - Gravity + MP Absorb - Gravity + Quadra Magic

Admittedly, it'll take a long time, still, but it's less time consuming than mastering Mime twice.
I may be wrong, but I think that only works on Emerald, not Ruby.