Medicham-Mega @ Medichamite  
Ability: Pure Power  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Fake Out  
- High Jump Kick  
- Zen Headbutt  
- Ice Punch  

Kartana @ Choice Scarf  
Ability: Beast Boost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Sacred Sword  
- Knock Off  
- Aerial Ace  

Landorus-Therian @ Rocky Helmet  
Ability: Intimidate  
EVs: 248 HP / 188 Def / 16 SpD / 56 Spe  
Impish Nature  
- Stealth Rock  
- U-turn  
- Earthquake  
- Hidden Power [Ice]  

Tapu Koko @ Electrium Z  
Ability: Electric Surge  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Wild Charge  
- U-turn  
- Hidden Power [Ice]  
- Defog  

Gastrodon @ Leftovers  
Ability: Storm Drain  
EVs: 248 HP / 240 SpD / 20 Spe  
Sassy Nature  
- Scald  
- Earthquake  
- Recover  
- Toxic  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 200 HP / 56 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Volt Switch  
- Hidden Power [Fire]  
- Ice Beam