[Snake]

I agree with the part Mass should multiply the FP consumed by the number of people healed/buffed.

Still, there's the easy solution to this, where you could maybe make it like Explosion, where you put + and - to increase the size of the mass and the FP consumed, and each '+' is a (2x), to a max of (Rank). Going like (2x) (4x) (6x) (8x) (10x) FP consumed for a (+1) (+2) (+3) (+4) (+5) diamond range.

I mean, Curates have insane FP regen anyway, not like this will become a hassle to anyone but omniclassers.