It is pretty easy to get Gilgamesh's Card to get Holy Wars. If you have gotten the card before Disc 4 from Card King, refine it into 10 Holy Wars when you reache the Ragnarok in Disc 4. Make sure the rule use earlier is not too complicated. Open, Sudden Death, Elemental are acceptable. "Same" is still acceptable, but if "Plus" or "Random" is applied, it will be tougher. Both Xu and Quistis have the card in the Ragnarok. It is up to you to play with either of them, but since Xu uses the rule applied earlier, it is an advantage to play with her instead of Quistis (who uses all the rules). Xu uses the card very frequently; if it is not in your hand. It is possible to get 100 Holy Wars by this method.