Sounds like a plan, then. When you're done training - either properly finished or just done for the day, I'm fine with either - I'll show you some of the things your... Yamask, was it? Can do. Ghosts are pretty notorious for having some horrifying powers. There's one attack called Curse that makes your Pokemon hurt itself quite severely, but causes your opponent to keep taking spectral damage until they pass out.

I'm pretty sure there's some mythology behind Yamask as well, I was hoping to get one myself later on. I'll get back to you on that.