You should teach Stealth Rock to either Blissey or Forretress.
:d
Blissey is AWESOME. I had one on my team in Pearl (I think I still do, but I don't remember I haven't played it in a while), and it was probably my best Pokemon.
Also, underscore are we doing Lv. 50 or Lv. 100?
My Blissey is awesome because it likes Paralyzing certain Metagrosses called Beldy.
As I'm sure somebody knows.