Ho-Oh @ Choice Band  
Ability: Regenerator  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Brave Bird  
- Earthquake  
- Sacred Fire  
- Thunder Wave  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 224 HP / 32 Def / 252 Spe  
Jolly Nature  
- Foul Play  
- U-turn  
- Roost  
- Sucker Punch  

Xerneas @ Heavy-Duty Boots  
Ability: Fairy Aura  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunder Wave  
- Aromatherapy  
- Moonblast  
- Defog  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 224 HP / 252 SpD / 32 Spe  
Careful Nature  
- Thunder Wave  
- Iron Head  
- Stealth Rock  
- Morning Sun  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 240 HP / 252 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Cosmic Power  
- Meteor Beam  
- Mystical Fire  
- Recover  

Marshadow @ Choice Scarf  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Close Combat  
- Ice Punch  
- Shadow Sneak