Slurpuff @ Focus Sash  
Ability: Unburden  
Level: 97  
EVs: 252 SpA / 252 Spe  
Naive Nature  
IVs: 0 HP / 0 Atk / 0 Def / 0 SpD  
- Misty Explosion  
- Magic Coat  
- Sticky Web  
- Endeavor  

Cloyster @ King's Rock  
Ability: Skill Link  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naughty Nature  
- Shell Smash  
- Icicle Spear  
- Rock Blast  
- Ice Shard  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Oblivion Wing  
- Dark Pulse  
- Taunt  
- Sucker Punch  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 136 HP / 252 Atk / 120 Spe  
Adamant Nature  
- Sunsteel Strike  
- Photon Geyser  
- Earthquake  
- Dragon Dance  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Meteor Beam  
- Flamethrower  
- Sludge Bomb  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Rock Polish  
- Swords Dance  
- Precipice Blades  
- Stone Edge