Aerodactyl-Mega @ Focus Sash  
Ability: No Guard  
EVs: 200 HP / 200 Atk / 200 Def / 200 SpD / 200 Spe  
Jolly Nature  
- Sheer Cold  
- Bolt Strike  
- Sing  
- Gastro Acid  

Aerodactyl-Mega @ Choice Band  
Ability: Huge Power  
EVs: 200 HP / 200 Atk / 200 Def / 200 SpD / 200 Spe  
Jolly Nature  
- Dragon Ascent  
- U-turn  
- Bolt Strike  
- Thousand Arrows  

Mewtwo-Mega-Y @ Life Orb  
Ability: Protean  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Baddy Bad  
- Buzzy Buzz  
- Freezy Frost  
- Moongeist Beam  

Muk-Alola @ Air Balloon  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Impish Nature  
- Pursuit  
- U-turn  
- Freezy Frost  
- Toxic Spikes  

Slowbro-Mega @ Leftovers  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Sassy Nature  
- Bouncy Bubble  
- Spectral Thief  
- Will-O-Wisp  
- Recover  

Mewtwo-Mega-X @ Safety Goggles  
Ability: Illusion  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Shell Smash  
- Photon Geyser  
- Close Combat  
- Spore