Darkrai @ Choice Specs  
Ability: Bad Dreams  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Pulse  
- Trick  
- Ice Beam  
- Thunderbolt  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 240 HP / 132 Def / 52 SpA / 84 SpD  
Modest Nature  
IVs: 0 Atk  
- Flash Cannon  
- Ice Beam  
- Hidden Power [Fire]  
- Fleur Cannon  

Charizard-Mega-Y (M) @ Charizardite Y  
Ability: Drought  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
- Fire Blast  
- Solar Beam  
- Hidden Power [Ice]  
- Flame Charge  

Mamoswine (M) @ Focus Sash  
Ability: Thick Fat  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Ice Shard  
- Earthquake  
- Icicle Spear  
- Stealth Rock  

Celebi @ Aguav Berry  
Ability: Natural Cure  
EVs: 252 HP / 148 Def / 88 SpD / 20 Spe  
Bold Nature  
- Giga Drain  
- U-turn  
- Healing Wish  
- Thunder Wave  

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Shadow Sneak  
- Rock Tomb  
- Close Combat  
- Spectral Thief