The idea of Schala being a playable character in Chrono Trigger has always been an interesting topic of conversation among fans. Most agree that if this was possible, she would have probably joined either before or after the Ocean Palace disaster. But what techs would Schala actually have? Based on what we see in game, although she is a powerful spellcaster, she doesn't seem quite as good as Magus/Janus is. Especially when it comes to offensive techs (being a nice and non-aggressive person). I honestly think that her techs would probably be somewhat a combination of what Magus and Marle has (and possibly a bit of Frog's techs).
In my opinion, Schala's tech list as a playable character might look something like this:
Not necessarily in that order, but something like that. Perhaps it would be better to have her learn the three offensive spells first like Magus, but this makes more sense to me seeing as how in the game, she is an expert at support/barrier type of magic, along with possibly healing. This tech setup would therefore make Schala a great healer and support character, but a bit lousy at fighting which again, makes sense for her character type and personality. She might also make Marle look a bit useless by comparison. Which brings up another point, instead of trying to add an eighth character, couldn't a romhack just replace Marle with Schala? Now that would be an interesting thing to see. Especially story wise, since the replacement of these characters would change the story line drastically. But enough of that. Moving back to topic now, what techs do you all think that Schala would have and why (assuming she joined the party).
Note: I only added what single techs Schala might have, but you can add double and triple techs as well if you like. Making such lists just seemed as though it would have taken too much time for me. Another interesting point of conversation would be what weapon she would use if any. I'm guessing that it would either be a crossbow like Marle or a staff of some sort. Either way, she would not be a good attacking character (which is to be expected of spellcasters).
Edit: And as a separate thought, it would also be a great idea if shield/barrier/haste would be changed to target all characters instead of just one at a time.