Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Taunt  
- Knock Off  
- Sucker Punch  
- Roost  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Meteor Beam  
- Flamethrower  
- Dragon Tail  
- Dynamax Cannon  

Scolipede @ Focus Sash  
Ability: Speed Boost  
EVs: 252 Atk  
Brave Nature  
IVs: 0 HP / 0 Def / 0 SpA / 0 SpD / 16 Spe  
- Protect  
- Endeavor  
- Throat Chop  
- Spikes  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 248 Atk / 252 SpA / 8 Spe  
Naughty Nature  
- Geomancy  
- Moonblast  
- Rock Slide  
- Close Combat  

Groudon @ Lum Berry  
Ability: Drought  
EVs: 96 HP / 252 Atk / 160 Spe  
Adamant Nature  
- Rock Polish  
- Precipice Blades  
- Stone Edge  
- Swords Dance  

Calyrex-Shadow @ Choice Specs  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Encore  
- Astral Barrage  
- Disable  
- Trick