Well, I'm happy that you managed to amass so many cards, but you do realize that you those can be refined into very useful items? I try to have as few cards in my hand as possible (excluding GF and character cards).
I assume you're going for curse spikes in order to end up with an Ability x 4...ability. Well, it's not necessary to that. You only need two rosetta stones (as you no doubt know). One can be obtained from one of the card players at the military prison. I've this can take a crapload of games, but on my last playthrough I got the rosetta stone after only seven or eight games. Another rosetta stone can be obtained at the Esthar store: just keep entering and re-entering Cheryls' store, and you'll eventually get a free gift- your very own rosetta stone!
There are a few cases where Ward is not with Laguna and Kiros, so no worries.
I don't feel like going into Omega strategy, but I ended up "cheating" with the Holy War item. Despite what many have told me, and despite 255 stats. across the board, I was annihilated by Terra Break everytime...