Tsuki Wolf not using/gaining necro

Pinkerton

I have a fresh tame Tsuki, it has 17.9 Necro and SS.  But it will not use it, and it is not gaining at all.  Any tips?

Petra_Fyde

As I understand it, Necromancy on pets is a passive skill unless selected through animal training. If I am remembering correctly, on a pet with the passive skill, activating it will cost no points.

Pinkerton

Thank you.