Calyrex-Ice @ Heavy-Duty Boots  
Ability: As One (Glastrier)  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Glacial Lance  
- Swords Dance  
- Leech Seed  
- Substitute  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 160 HP / 252 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Mystical Fire  
- Dynamax Cannon  
- Recover  
- Toxic  

Tangrowth @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Stun Spore  
- Leech Seed  
- Earthquake  
- Grass Knot  

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

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 128 HP / 32 Atk / 252 SpD / 96 Spe  
Adamant Nature  
- Foul Play  
- U-turn  
- Roost  
- Defog  

Marshadow @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Poltergeist  
- Close Combat  
- Shadow Sneak  
- Ice Punch