Aerodactyl-Mega @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Will-O-Wisp  
- Crabhammer  
- Icicle Spear  
- Roost  

Beedrill-Mega @ Black Sludge  
Ability: Wonder Guard  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Trick  
- U-turn  
- Spikes  
- Taunt  

Audino-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Parting Shot  
- Roost  
- Chatter  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Beat Up  
- Pursuit  
- Stealth Rock  
- Water Shuriken  

Rayquaza-Mega @ Shed Shell  
Ability: Mold Breaker  
EVs: 200 HP / 252 SpA / 56 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Earth Power  
- Oblivion Wing  
- Dark Void  

Groudon-Primal @ Choice Band  
Ability: Mold Breaker  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Thousand Arrows  
- Trick  
- Extreme Speed  
- V-create