I think that a solid idea would be to give this Pokemon an ability that benefits from either Flame Orb or Toxic Orb (Poison Heal, Guts, etc.).
For one, it'd open up our typing. One of the easiest ways to take opposing status is to inflict it on yourself anyways. This means that, not only is CAP 9 getting benefits from hitting itself with status, it can be a wider variety of types, as it no longer needs to be, say, Steel to dodge Poison.
To a certain extent, it helps against Trick. Sure, the opponent can Trick it off later on, but in the meantime, Rotom, say, is now heavily poisoned. In Sandstorm, especially, it's still a pretty heavy burden (especially if CAP 9 was given Poison Heal).
To cap it off, it'd provide a powerful bonus that could help in different roles depending on which ability we give it. Poison Heal would be a great help for defensive purposes, while Guts or Quick Feet could contribute towards a strong offense. Whatever else we decide to make it, the ability could help "back up."