Eternally Shiest (Eternatus) @ Leftovers  
Ability: Pressure  
Tera Type: Fairy  
EVs: 248 HP / 164 SpD / 96 Spe  
Timid Nature  
- Sludge Bomb  
- Flamethrower  
- Toxic Spikes  
- Recover  

Its Joever (Necrozma-Dusk-Mane) @ Ultranecrozium Z  
Ability: Prism Armor  
Tera Type: Psychic  
EVs: 224 Atk / 32 Def / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Photon Geyser  
- Earthquake  
- Stone Edge  

Catch These Hooves (Palkia-Origin) @ Lustrous Globe  
Ability: Pressure  
Tera Type: Water  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Hydro Pump  
- Spacial Rend  
- Fire Blast  
- Substitute  

CEO Sama (Groudon) @ Red Orb  
Ability: Drought  
Tera Type: Flying  
EVs: 248 HP / 56 Def / 204 SpD  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  
- Roar  

Johto Fried Ho-oh (Ho-Oh) @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Brave Bird  

The Gatekeeper (Yveltal) @ Life Orb  
Ability: Dark Aura  
Tera Type: Dark  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
- Dark Pulse  
- Oblivion Wing  
- Taunt  
- Knock Off