A video showcasing how to obtain Zell Card on the 2nd try.

This requires FF8 Utilities or Ruby with pingvals ruby script to run. https://www.speedrun.com/ff8/resources

2nd try zell card doesn't require any RNG tracking, it only requires the following.

• 1st try Quistis Card.
• The correct platform selected in FF8 Utilities. Ensure Fast Disc Speed is on for PS2.

Note: There is a small chance that you can lose to Mama if Zell is not on the field, to counter this, I'd recommend doing the card battle after you obtain Diablos. This makes it guaranteed to win.