same as on ruby/sapphire, it evolves once at level 16, and again at level 36. It's one of the starter Pokemon in ruby/sapphire, so look after it!
Level 18.
Level 26
Level 25
level 28
Level 30.
Level 37.
Level 30.
at level 40 it should evolve into drapion
Spiritomb doesn't evolve.
you have to evolve it with a water stone
Donphan doesn't evolve.
24.