Pheromosa is one of the best Pokemon in singles, though I'm admittedly not sure how great it is in Doubles. It does sound decent in theory.
You're going to want teammates capable of beating Arcanine, Garchomp and Goodra. Maybe try out Krookodile? Intimidate support is AWESOME in VGC, as is STAB Earthquake. You also really struggle with Pelipper if you don't get the weather up. Tapu Koko might be another good addition.
Nice to see you again @AlphaVoxel!
You're going to want teammates capable of beating Arcanine, Garchomp and Goodra. Maybe try out Krookodile? Intimidate support is AWESOME in VGC, as is STAB Earthquake. You also really struggle with Pelipper if you don't get the weather up. Tapu Koko might be another good addition.
Nice to see you again @AlphaVoxel!