Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 160 HP / 4 Def / 96 SpA / 92 SpD / 156 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Sludge Bomb  
- Recover  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
- Stealth Rock  
- Iron Head  
- Toxic  
- Morning Sun  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
IVs: 0 Spe  
- Transform  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 208 Def / 40 SpD / 8 Spe  
Impish Nature  
- Spikes  
- Leech Seed  
- Curse  
- Knock Off  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 176 HP / 80 SpD / 252 Spe  
Jolly Nature  
- Defog  
- Foul Play  
- Roost  
- Taunt  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 248 HP / 136 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Scald  
- Rest  
- Sleep Talk