Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 120 Def / 140 SpD  
Relaxed Nature  
- Precipice Blades  
- Stealth Rock  
- Toxic  
- Overheat  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 176 Atk / 20 Def / 56 SpD / 8 Spe  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Thunder Wave  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 24 HP / 32 Atk / 220 SpA / 16 SpD / 216 Spe  
Hasty Nature  
- Diamond Storm  
- Moonblast  
- Earth Power  
- Protect  

Marshadow @ Choice Band  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Poltergeist  
- Spectral Thief  
- Shadow Sneak  
- Low Kick  

Fezandipiti @ Utility Umbrella  
Ability: Toxic Chain  
Tera Type: Grass  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
- U-turn  
- Roost  
- Icy Wind  
- Acid Spray  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Water  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest