[@VitaVitaAR]
Actually, the Tower of Babel is an allegory I used to explain the magic power. What I had in mind is something like the power of ponder of the antagonists of Kara no Kyoukai has.

It's the power to exert your will over the world by speaking the original language which is magical in and off itself. For example, if my character commanded a traffic light to turn green out would it would with ease. Of she told someone to take their clothes off and dance in the middle of the street she could do it work a more elaborate phrase, but a target with a lot of will power could resist her.

Nevertheless she can't warp reality with her words since it would require reattaining's the knowledge of the Origin of All Magic, so she can't do impossible things like commanding a person to fly or water to catch on fire.

Ultimately, the power of the spell and the difficult to resist it depend on how well she phrases her command and how many words of power she uses on it. Exactly like how your magic system was supposed to work.

What do you think of this?