Xerneas @ Power Herb  
Ability: Fairy Aura  
Level: 50  
EVs: 156 HP / 20 Def / 252 SpA / 4 SpD / 76 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Thunder  
- Geomancy  
- Draining Kiss  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
Level: 50  
EVs: 204 HP / 188 Def / 116 Spe  
Impish Nature  
- Sunsteel Strike  
- Psychic Fangs  
- Dragon Dance  
- Morning Sun  

Quagsire @ Sitrus Berry  
Ability: Unaware  
Level: 50  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Earthquake  
- Scald  
- Toxic  
- Recover  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
Level: 50  
EVs: 156 HP / 252 Def / 100 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Soft-Boiled  
- Stealth Rock  
- Thunder Wave  

Dragapult @ Life Orb  
Ability: Infiltrator  
Level: 50  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Dragon Darts  
- Phantom Force  
- Fire Blast  
- Dragon Dance  

Thundurus (M) @ Focus Sash  
Ability: Prankster  
Level: 50  
EVs: 100 Atk / 196 SpA / 212 Spe  
Naive Nature  
- Thunderbolt  
- Thunder Wave  
- Foul Play  
- Superpower