Koraidon @ Choice Scarf  
Ability: Orichalcum Pulse  
Tera Type: Fire  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Low Kick  
- Dragon Claw  
- U-turn  
- Flare Blitz  

Flutter Mane @ Life Orb  
Ability: Protosynthesis  
Tera Type: Stellar  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 29 HP / 0 Atk  
- Moonblast  
- Shadow Ball  
- Psyshock  
- Power Gem / Mystical Fire  

Groudon @ Leftovers  
Ability: Drought  
Tera Type: Ground  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Swords Dance / Will-O-Wisp  
- Spikes  
- Precipice Blades  
- Smack Down  

Miraidon @ Life Orb  
Ability: Hadron Engine  
Tera Type: Grass  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Calm Mind / Agility 
- Draco Meteor / Dragon Pulse 
- Electro Drift  
- Solar Beam  

Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Fire  
EVs: 200 HP / 252 SpA / 56 Spe  
Modest Nature  
IVs: 0 Atk  
- Agility / Recover  
- Meteor Beam  
- Dynamax Cannon  
- Fire Blast / Flamethrower 

Arceus @ Silk Scarf  
Ability: Multitype  
Tera Type: Ghost  
EVs: 120 HP / 252 Atk / 136 Spe  
Adamant Nature  
- Swords Dance  
- Taunt  
- Extreme Speed  
- Shadow Claw