Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 76 Atk / 68 Def / 40 SpD / 76 Spe  
Impish Nature  
- Swords Dance  
- Heat Crash  
- Precipice Blades  
- Rock Tomb  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
Tera Type: Dark  
EVs: 40 HP / 228 Def / 16 SpD / 224 Spe  
Timid Nature  
- Foul Play  
- Toxic  
- Defog  
- U-turn  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
Tera Type: Fairy  
EVs: 216 Atk / 68 Def / 8 SpD / 216 Spe  
Adamant Nature  
- Dragon Dance  
- Earthquake  
- Stone Edge  
- Taunt  

Eternatus @ Choice Specs  
Ability: Pressure  
Tera Type: Dragon  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Fire Blast  
- Sludge Bomb  
- Draco Meteor  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
Tera Type: Water  
EVs: 60 HP / 44 Def / 216 SpA / 188 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Origin Pulse  
- Thunder  
- Ice Beam  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
Tera Type: Psychic  
EVs: 8 HP / 44 Def / 232 SpA / 224 Spe  
Naive Nature  
IVs: 1 Atk  
- Stealth Rock  
- Photon Geyser  
- Earth Power  
- Stone Edge