Groudon @ Leftovers  
Ability: Drought  
Shiny: Yes  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Bulk Up  
- Toxic  

Ho-Oh @ Choice Band  
Ability: Regenerator  
Shiny: Yes  
EVs: 248 HP / 208 Atk / 52 SpD  
Adamant Nature  
- Sacred Fire  
- Earthquake  
- Brave Bird  
- Flare Blitz  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
Shiny: Yes  
EVs: 252 HP / 136 SpD / 120 Spe  
Careful Nature  
- Stealth Rock  
- Morning Sun  
- Iron Head  
- Thunder Wave  

Xerneas @ Leftovers  
Ability: Fairy Aura  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Rest  
- Sleep Talk  
- Aromatherapy  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
Shiny: Yes  
EVs: 164 HP / 252 SpD / 92 Spe  
Timid Nature  
- Recover  
- Toxic  
- Mystical Fire  
- Dynamax Cannon  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 16 HP / 240 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Defog  
- Taunt  
- Roost