Since you liked them.
SERAPH SEPHIROTH (Or safer or whatever you call him
)
Level: 99
HP:100,000,000 (Basic, not boosted or lowered)
MP: 9999
STR:255
DEF:255
MAG:255
MDEF:255
AGIL:255
EVDE:255
attacks: Supernova (now Non-elemental), Wing attack (7,000 aprox) Mighty Guard (Replaces Wall, basically Wall+Haste),
End of Days (kills 2 random party members), Heartless Angel (One HP+ 0 MP), Drain (drains 9998 HP from one charactor)
Ultima, Oblivion ( 16 hit counter VS. KOTR, 562 Damage Per hit), Gravijagun (I wondered where the -90% attack went)
Black Sky ('nother name for comet2, 3000 per hit), Curaga, Regen, Reflect, Dark Soul (Kills one charactor while giving him 100,000 HP back)
BTW, Shattered light is just Dark Nation with a different name, and different stats!
Other ideas
Ultima: Could it hit all parties?