GayMarshall

I hear a Garchomp will do her in pretty easily.

There are a couple of Wingull on the island if you want a flying type. I recommend going back to the underground railnet and catching and training a Woobat. Mine did most of the work, with assistance from Delphox.

Cofagrigus does work on a good chunk of her gym, especially her ace because of it's Mummy ability.