Theorycrafting - Turn FF6 into FF4?

For many of these abilities, you can use the Shock/Health shortcut, adding these to a spell in the game, then having the ability simply play the spell. That gets you analyze, pray, cry, kick, scan, and dark wave. All of the rest are doable with ASM. For example, for Recall, you have the system choose a random number between 1 and 128. If the number is below 53 (ie - its a magic spell), then use it as the index number of the spell and cast it with default targeting. That gives it slightly less than a 50% chance of working, and allows Tellah to cast any spell in the game. That could include W Wind or Merton.

The only one that I think would give you trouble is Twincast. There's nothing like that in FFVI.

All in all though, the big question I'd ask of this is "why"? There's nothing you'd gain from this that you couldn't get by hacking FFIV.