Eternatus @ Shed Shell  
Ability: Pressure  
EVs: 248 HP / 44 Def / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Dynamax Cannon  
- Flamethrower  
- Toxic  

Rillaboom (M) @ Choice Band  
Ability: Grassy Surge  
Gigantamax: Yes  
EVs: 252 Atk / 116 Def / 140 Spe  
Adamant Nature  
- Grassy Glide  
- U-turn  
- Knock Off  
- High Horsepower  

Necrozma-Dusk-Mane @ Heavy-Duty Boots  
Ability: Prism Armor  
EVs: 248 HP / 228 Def / 32 Spe  
Impish Nature  
- Stealth Rock  
- Thunder Wave  
- Morning Sun  
- Earthquake  

Mandibuzz @ Heavy-Duty Boots  
Ability: Overcoat  
EVs: 248 HP / 244 SpD / 16 Spe  
Calm Nature  
IVs: 0 Atk  
- Roost  
- Taunt  
- Foul Play  
- Defog  

Ditto @ Choice Scarf  
Ability: Imposter  
Shiny: Yes  
EVs: 248 HP / 8 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Zacian @ Choice Band  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Play Rough  
- Crunch  
- Close Combat  
- Psychic Fangs