Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 224 Def / 32 Spe  
Impish Nature  
- Earthquake  
- Thunder Wave  
- Stealth Rock  
- Moonlight  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
- Snarl  
- U-turn  
- Defog  
- Roost  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 240 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Recover  
- Toxic  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Close Combat  
- Play Rough  
- Behemoth Blade  

Gothitelle @ Leftovers  
Ability: Shadow Tag  
EVs: 252 HP / 124 Def / 132 Spe  
Bold Nature  
IVs: 0 Atk  
- Charm  
- Cosmic Power  
- Taunt  
- Rest  

Palkia @ Lustrous Orb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Spacial Rend  
- Hydro Pump  
- Fire Blast  
- Thunder Wave