@Nikito: Irvine's strong points are his Speed and Luck, to offset his lower HP, Strength and Vitality compared to Squall and Zell. His natural Speed growth is planned to be increased further for the next update, while Speed gains from junctions will be lowered, so Irvine's advantage in Speed over the other characters will always be noticable (only Selphie will come close). Besides that, all of his weapons will receive an innate critical hit bonus, not just Exeter. I hope this will make him more worthwhile overall.
@demondrakeza666: Yes, the Zell card has become part of a sidequest in this mod, rather than being won by a Triple Triad player. This sidequest can be completed at the beginning of disc 3 at the earliest, until the point of no return at the end of disc 3 at the latest. You don't have to care about any prerequisites prior to disc 3, the card can be found anytime during disc 3, no matter the circumstances. If you need more information about where to find items, cards etc, let me know.