>>17406046Mega Aggron Physical Wall
Gardevoir Special Wall
Sceptile Swords Dance set or Specs Leaf Storm
Banded or Belly Drum Azumarill
Banded/Kings Rock Cinccino
Black Sludge/Trick or just regular Sub Gengar. There's also Mega Sub sets and Perish Song Mega sets to look at.
Honestly it might do better in doubles.