Tapu Koko @ Fairium Z  
Ability: Electric Surge  
EVs: 8 HP / 4 Def / 244 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Dazzling Gleam  
- Calm Mind  
- Roost  

Weavile @ Choice Band  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Icicle Crash  
- Knock Off  
- Ice Shard  
- Pursuit  

Serperior @ Leftovers  
Ability: Contrary  
EVs: 208 HP / 48 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Synthesis  
- Glare  
- Defog  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 72 Def / 188 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Fleur Cannon  
- Ice Beam  
- Hidden Power [Fire]  
- Volt Switch  

Landorus-Therian (M) @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 112 Def / 144 Spe  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Hidden Power [Ice]  
- U-turn  

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