Quote Originally Posted by Devil Shroom
Yeah I know the cat nip trick but the boss always killed me off before I had a chance to use it.
Do you have two Crystal Glove (Or other strong defensive accessories and two Crystal Bangle (Or Mythril Bangle, Titanium Bangle)?

You should have two mastered Dark Knight and one mastered Gunner, Equip The Dark Knight with either Valiant Lustre GG or Highroad Wind GG, also equip them with HP-Boosting and Defensive Accessories.
Then hack away with Gunner's Trigger Happy!