Pheromosa@Choice Scarf
Beast Boost
216 Atk/252 Spe/40 SpA
Adamant Nature
-High Jump Kick
-U-turn
-Poison Jab
-Ice Beam
The most lethal Ultra Beast. With a Choice Scarf, it outspeeds literally everything and even the Common Scarfed Pokemon like Garchomp and Landorus. The EVs are modified such, so that it gets Beast Boost on Atk.
Tapu Lele@Choice Scarf
Psychic Surge
252 SpA/252 Spe/4 HP
Timid Nature
-Psychic
-Moonblast
-Focus Blast
-HP Fire
Best Revenge Killer in the game. Psychic terrain is a big support to Pheromosa and shields it from Prakster and Priority moves. Takes on Toxapex for Pheromosa.
Bisharp@Black Glasses
Defiant
252 HP/252 Atk/4SpD
Adamant Nature
-Knock Off
-Sucker Punch
-Pursuit
-Iron Head
The Defog abuser in my team because of Defiant. It takes on Ghost-types for Pheromosa.
Toxapex@Black Sludge
Regenerator
252 HP/252 SpD/4 Def
Calm Nature
-Haze
-Recover
-Scald
-Toxic
Can switch in on many Pokemon of the tier. It is my Special Wall.
Ferrothorn@Rocky Helmet
Iron Barbs
252 HP/252 Def/4 Atk
Impish Nature
-Leech Seed
-Protect
-Gyro Ball
-Stealth Rock
Hazard setter and my Physical Wall.
Marowak-Alola@Thick Club
Rock Head
252 HP/252 Atk/4 Def
Adamant Nature
-Flare Blitz
-Shadow Bone
-Bonemerang
-Will-o-Wisp
I didn't know what could be my last Pokemon. I chose Marowak just to compete with other Pheromosa.