I finally decided to stop MASTERing crap and take on Sephiroth (after beating Emeral and Ruby WEAPONs, of course). Now that I've beaten Final Fantasy VII, I'm moving on to Final Fantasy VIII.
CONGRADULATE ME OR BE SPRAYED BY FISH!
No, just kidding. Those are the same fish from my intro in 'General Chat,' so they'll spary you anyway.
P.S. I had three Master Magics, four Master Commands, and three Master Summons. All without using any GameShark (or any other cheat device) codes. Granted, one of each was from the Kalm traveler, but I still got the others by MASTERing crap.