Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Eruption  
- Precipice Blades  
- Stone Edge  
- Stealth Rock  

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

Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Toxic  
- Wish  
- Protect  

copium (Ditto) @ Choice Scarf  
Ability: Imposter  
Tera Type: Ghost  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Arceus-Water @ Splash Plate  
Ability: Multitype  
Tera Type: Grass  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Grass Knot  
- Recover  

Chien-Pao @ Choice Band  
Ability: Sword of Ruin  
Tera Type: Dark  
EVs: 24 HP / 252 Atk / 16 Def / 216 Spe  
Jolly Nature  
- Crunch  
- Ice Spinner  
- Ice Shard  
- Sucker Punch