Koraidon @ Leftovers  
Ability: Orichalcum Pulse  
Tera Type: Ground  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Flame Charge  
- Dragon Claw  
- Collision Course  

Flutter Mane @ Life Orb  
Ability: Protosynthesis  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Shadow Ball  
- Mystical Fire  
- Calm Mind  

Chien-Pao @ Heavy-Duty Boots  
Ability: Sword of Ruin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Ice Shard  
- Crunch  
- Icicle Crash  

Miraidon @ Weakness Policy  
Ability: Hadron Engine  
EVs: 208 HP / 252 SpA / 48 Spe  
Modest Nature  
- Calm Mind  
- Parabolic Charge  
- Dragon Pulse  
- Agility  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
IVs: 30 Atk  
- Transform  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Light Screen  
- Reflect  
- Parting Shot  
- Spirit Break