Will gach, cubes etc. soon become illegal?

Try doing that without potentials.

Adjust the boss as if we never had Potential and you're on.

I don't know why you guys keep saying certain bosses would be impossible when they were intentionally designed with the system in mind. If the system never existed, then the bosses would be designed as if we never had it in the first place.

You can't have one without the other.