258 (Xerneas) @ Power Herb  
Ability: Fairy Aura  
Level: 50  
Shiny: Yes  
EVs: 124 HP / 52 Def / 252 SpA / 4 SpD / 76 Spe  
Modest Nature  
- Substitute  
- Draining Kiss  
- Thunderbolt  
- Geomancy  

Thundurus @ Eject Button  
Ability: Prankster  
Level: 50  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
- Taunt  
- Thunder Wave  
- Eerie Impulse  
- Foul Play  

Urshifu @ Focus Sash  
Ability: Unseen Fist  
Level: 50  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Wicked Blow  
- Close Combat  
- Sucker Punch  
- Stone Edge  

250 (Volcarona) @ Lum Berry  
Ability: Flame Body  
Level: 50  
Shiny: Yes  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Fiery Dance  
- Quiver Dance  
- Giga Drain  
- Psychic  

Ditto @ Choice Scarf  
Ability: Imposter  
Level: 50  
Shiny: Yes  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Rillaboom @ Life Orb  
Ability: Grassy Surge  
Level: 50  
Shiny: Yes  
EVs: 252 Atk / 244 Def / 12 Spe  
Adamant Nature  
- Grassy Glide  
- Swords Dance  
- Superpower  
- High Horsepower