Medicham-Mega @ Medichamite  
Ability: Pure Power  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- High Jump Kick  
- Ice Punch  
- Power-Up Punch  
- Thunder Punch  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 200 HP / 252 SpA / 4 SpD / 52 Spe  
Modest Nature  
IVs: 1 Atk  
- Hidden Power [Fire]  
- Volt Switch  
- Flash Cannon  
- Dazzling Gleam  

Celesteela @ Iapapa Berry  
Ability: Beast Boost  
EVs: 252 HP / 151 Def / 5 SpA / 100 SpD  
Bold Nature  
IVs: 0 Atk  
- Flash Cannon  
- Leech Seed  
- Protect  
- Flamethrower  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 175 Def / 75 SpD / 6 Spe  
Bold Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Scald  
- Infestation  
- Recover  

Landorus-Therian @ Leftovers  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Stone Edge  
- Earthquake  
- U-turn  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
EVs: 104 HP / 12 Def / 176 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Hidden Power [Ice]  
- Roost