Question about stat points

[Hadelyn]

I wonder since I am healer, shoul I toss all my 30 points to Mind, or there is some diminishing returns or whathever thing that would be best to put some points into another stat?
Not sure about this... And since the stats reset item is 10k of seals, its best to be iformed about the case.

I've been putting mine into Piety, which has really increased my mp...