Kyogre @ Mystic Water  
Ability: Drizzle  
Level: 50  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Thunder  
- Ice Beam  

Melmetal @ Weakness Policy  
Ability: Iron Fist  
Level: 50  
Gigantamax: Yes  
EVs: 4 HP / 252 Atk / 252 SpD  
Adamant Nature  
- Double Iron Bash  
- High Horsepower  
- Thunder Punch  
- Protect  

Calyrex-Ice @ White Herb  
Ability: As One (Glastrier)  
Level: 50  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Glacial Lance  
- High Horsepower  
- Trick Room  
- Protect  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
Level: 50  
EVs: 252 HP / 132 Def / 124 SpD  
Impish Nature  
- Light Screen  
- Reflect  
- Scary Face  
- Spirit Break  

Groudon @ Assault Vest  
Ability: Drought  
Level: 50  
EVs: 252 HP / 156 Atk / 100 SpD  
Adamant Nature  
- Precipice Blades  
- Heat Crash  
- Rock Tomb  
- Shadow Claw  

Zekrom @ Life Orb  
Ability: Teravolt  
Level: 50  
EVs: 252 Atk / 4 SpA / 252 Spe  
Lonely Nature  
- Bolt Strike  
- Draco Meteor  
- Earth Power  
- Dual Wingbeat