Froslass (F) @ Focus Sash  
Ability: Mold Breaker  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Spikes  
- Taunt  
- Icy Wind  
- Destiny Bond  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 4 Atk / 252 Spe  
Serious Nature  
- Light Screen  
- Reflect  
- Taunt  
- Play Rough  

Eternatus @ Choice Specs  
Ability: Dragon's Maw  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Sludge Wave  
- Flamethrower  
- Dynamax Cannon  

Xerneas @ Power Herb  
Ability: Tinted Lens  
EVs: 168 Def / 252 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Psyshock  
- Geomancy  
- Ingrain  

Marshadow @ Life Orb  
Ability: Adaptability  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Bulk Up  
- Poltergeist  
- Close Combat  
- Shadow Sneak  

Rayquaza @ Life Orb  
Ability: Aerilate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Extreme Speed  
- V-create  
- Outrage