Froslass (F) @ Focus Sash  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Icy Wind  
- Taunt  
- Spikes  
- Destiny Bond  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 92 Def / 164 SpD  
Careful Nature  
- Reflect  
- Light Screen  
- Taunt  
- Play Rough  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 168 Def / 252 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Psyshock  
- Geomancy  
- Ingrain  

Zekrom @ Air Balloon  
Ability: Teravolt  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Bolt Strike  
- Dragon Claw  
- Dragon Dance  
- Substitute  

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

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 12 HP / 252 Atk / 244 Spe  
Adamant Nature  
- Sunsteel Strike  
- Earthquake  
- Dragon Dance  
- Stone Edge