Slowbro-Mega @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Psycho Shift  
- Scald  
- King's Shield  
- Aromatherapy  

Groudon-Primal @ Choice Band  
Ability: Mold Breaker  
EVs: 232 HP / 252 Atk / 12 SpD / 12 Spe  
Adamant Nature  
- V-create  
- Precipice Blades  
- U-turn  
- Thousand Arrows  

Diancie-Mega @ Pixie Plate  
Ability: Mold Breaker  
EVs: 40 HP / 252 SpA / 216 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Judgment  
- Steam Eruption  
- Searing Shot  

Giratina @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 252 Def / 8 Spe  
Bold Nature  
IVs: 0 Atk  
- Substitute  
- Baton Pass  
- Curse  
- Roost  

Audino-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Knock Off  
- Wish  
- Parting Shot  
- Defog  

Slaking @ Shed Shell  
Ability: Wonder Guard  
EVs: 4 HP / 252 Atk / 252 Def  
Adamant Nature  
- Fake Out  
- Extreme Speed  
- Pursuit  
- Stealth Rock