Groudon-Primal @ Air Balloon  
Ability: No Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Fissure  
- Sunsteel Strike  
- Zap Cannon  
- Spikes  

Landorus-Therian (M) @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Plasma Fists  
- Precipice Blades  

Groudon-Primal @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Bonemerang  
- Sunsteel Strike  
- V-create  

Zygarde-Complete @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Trick  
- Thousand Waves  
- Stoked Sparksurfer  
- Shore Up  

Swampert-Mega @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Shore Up  
- Spectral Thief  
- Defog  
- Baton Pass  

Garchomp-Mega @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 240 Def / 252 SpD / 252 Spe  
Lonely Nature  
IVs: 0 Def  
- Dragon Hammer  
- Shell Smash  
- Sunsteel Strike  
- Sacred Fire