How cool would it be to have combo techs, similar to what the characters of Chrono Trigger do, in Final Fantasy VI? Umaro already throws characters at the enemy, but there's so much more that could have been done. Similar to Vivi and Steiner, Celes could enchant someone else's weapon with magic power for an added bonus, rather than enchant her own weapon to absorb magic as magic points. And Terra could transform into an esper and Mog could fly her into the enemy, just like the Choco/Mog summon in FFVII.
What combos would you create?