how do you suppoese to defeat ultimecia

[Angel_wings]

Get everyone there last weapon,then level up at the island closest to heaven/hell.(by the way the monsters there are a pain in the..yeah so other bring Quistis in your party and make her use degenerater or get Squall Lionheart and use his limit break)

also if you need better magic make Diablos learn Encounter none then go to each the island closest to heaven/hell (hell first)then just walk around drawing all the rare magic in the game

if you need AP go to cactaur Island.After you get your main party's magic to the best you should have no problem with ultimecia you shouldnt need holy wars or anything like that.

I beat ultima weapon with one hit with lionheart hitting 9999 all the time(get to level 100).and I beat Omega by only using lmabey 2 or 3 holy wars and then casting Aura one everyone.

[Morik the Rogue]

You know how I did it? I used a GF ability to turn my Bahamut card into 100 megalixers. That'll do it. Even with that this fight was a major challenge, I generally save my GF's until the second or third form and then let her have it. After that use Cerberus and just pound her with your best attack magic. Oh, and just so you know, I was like, level 18 or so when I beat her. It goes against the very laws of nature but in this RPG leveling is death.