Have Squall with Lionheart , Zell with Ergheiz and Cerbrus and Riona (because of the magic Meteor ) or Shelpie "The END" , make sure that everybody is at Level 99 not 100 . Then First use Cerbrus then Aura then eventauly an War God Potion , and wait for the limit breacks " Killed Omega in 5 minutes