wow. way random. way way random. *shakes head*

As far as most potent card's go? Irvine, Squall, and Seifer. I dunno why Irvine always worked for me, but it did, like a mug.

Most usefull though? the Brothers cards. You get em nice and early and they slaughter pretty much everything until you can start getting character cards. those two and ifrit carried me until i could start getting character cards.