Ampharos-Mega @ Ampharosite  
Ability: Static  
EVs: 248 HP / 252 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk / 30 Def / 1 Spe  
- Charge Beam  
- Hidden Power [Ice]  
- Focus Blast  
- Thunderbolt  

Hatterene (F) @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 252 Def / 8 SpA  
Relaxed Nature  
IVs: 0 Atk  
- Draining Kiss  
- Mystical Fire  
- Psyshock  
- Trick Room  

Escavalier @ Choice Band  
Ability: Swarm  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 Spe  
- Megahorn  
- Iron Head  
- Close Combat  
- Knock Off  

Slowbro @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Atk  
- Teleport  
- Trick Room  
- Slack Off  
- Scald  

Victini @ Heavy-Duty Boots  
Ability: Victory Star  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 Spe  
- V-create  
- Trick Room  
- Bolt Strike  
- U-turn  

Conkeldurr @ Flame Orb  
Ability: Guts  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
- Knock Off  
- Close Combat  
- Mach Punch  
- Ice Punch