Swampert-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Recover  
- Defog  
- Whirlwind  

Steelix-Mega @ Leftovers  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Dark Void  
- Substitute  
- Encore  
- Baton Pass  

Garchomp-Mega @ Lum Berry  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Thousand Arrows  
- Dragon Claw  
- Sacred Fire  
- Shell Smash  

Groudon-Primal @ Red Orb  
Ability: Magic Bounce  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Roost  
- Thunder Wave  
- Aromatherapy  
- U-turn  

Groudon-Primal @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- V-create  
- Thousand Arrows  
- Extreme Speed  
- U-turn  

Groudon-Primal @ Heat Rock  
Ability: Drought  
EVs: 248 HP / 252 Atk / 8 Def  
Brave Nature  
IVs: 0 Spe  
- V-create  
- Recover  
- U-turn  
- Parting Shot