Suicune @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 140 Def / 116 Spe  
Bold Nature  
IVs: 0 Atk  
- Substitute  
- Protect  
- Calm Mind  
- Scald  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Sunsteel Strike  
- Moonlight  
- Knock Off  
- Stealth Rock  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 72 HP / 252 SpD / 184 Spe  
Timid Nature  
- Foul Play  
- Roost  
- U-turn  
- Defog  

Zacian @ Choice Band  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Play Rough  
- Close Combat  
- Wild Charge  
- Crunch  

Blissey (F) @ Utility Umbrella  
Ability: Natural Cure  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
- Confide  
- Seismic Toss  
- Soft-Boiled  
- Aromatherapy  

Eternatus @ Life Orb  
Ability: Pressure  
EVs: 44 HP / 36 Def / 244 SpA / 184 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Recover  
- Sludge Bomb  
- Flamethrower