Quote Originally Posted by Mo-Nercy
Are you sure you have all of Steiner's abilities? You haven't mentioned whether you've done the Chocograph side quest. If you haven't, that means you haven't got Ragnarok which means you haven't learn Steiner's best ability, Shock.
Excalibur II allow you to learn Shock too... Man, if you have Excalibur II he should be pice of cake!