Groudon @ Lum Berry  
Ability: Drought  
EVs: 88 HP / 252 Atk / 168 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Rock Polish  
- Swords Dance  

Xerneas @ Leftovers  
Ability: Fairy Aura  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Play Rough  
- Defog  
- Aromatherapy  
- Toxic  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 248 HP / 76 SpD / 184 Spe  
Timid Nature  
- Foul Play  
- Oblivion Wing  
- Defog  
- U-turn  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 204 HP / 248 Def / 56 Spe  
Impish Nature  
- Coil  
- Glare  
- Thousand Arrows  
- Rest  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Earthquake  
- Sunsteel Strike  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 240 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic  
- Dynamax Cannon  
- Mystical Fire  
- Recover