Alright, here’s my Thief Mage stuff:
Action Command: Thief Magic (includes Haste, Hastega(wider range and longer duration), Slow, Slowga(same as Hastega), Stop, Stopga(same), Gravity, Gravija, and Graviga. Thief Magic costs about twice as much as normal. Plus there would be Hastedrain, which casts haste on you, slow on the enemy, and steals gil, and it would cost about 24 MP.)
Action Command: Steal (all the normal steals, like Steal Gil, Weapon, Armor, Helm, Accessory, EXP, JP, HP, and MP. Plus there’s Steal Heart(charm), Steal Health(poison), Steal Sight(darkness), Steal Voice(silence), and Steal Will(berserk). The last five cost about 8 MP.)
Reaction: Double Reflex (increases physical and magical evasion by a lot)
Support: Maintenance (I think everyone knows what this does)
Movement: Move Twice (Cuts your move distance in half but lets you move twice)
For stats, the Thief Mage would have high speed, evasion, luck, move, and jump, but VERY low strength, defense, magic, magic defense, and HP. (just to keep things fair.)