Prankster gives it priority on all status moves such as wil o wisp.
It has a type combination that has no weakness.
Part ghost so can spin block.
Night shade is an avalible stalling move, but this guy can shut down many sweepers with just wil o wisp.
Can spin and phaze.
Has good all round defenses.
Great on a team with hazards in as dragon tail phazes and stops boosting.
Also has toxic.
If you want more ask.