Magearna @ Electrium Z  
Ability: Soul-Heart  
EVs: 20 HP / 240 Def / 248 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Trick Room  
- Thunderbolt  
- Ice Beam  
- Focus Blast  

Nihilego @ Focus Sash  
Ability: Beast Boost  
Shiny: Yes  
EVs: 20 HP / 240 SpA / 248 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Sludge Wave  
- Hidden Power [Ice]  
- Thunder Wave  

Gyarados-Mega (F) @ Gyaradosite  
Ability: Intimidate  
EVs: 64 HP / 248 Atk / 196 Spe  
Jolly Nature  
IVs: 0 SpA  
- Dragon Dance  
- Crunch  
- Earthquake  
- Ice Fang  

Greninja (M) @ Choice Specs  
Ability: Battle Bond  
EVs: 4 HP / 248 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Surf  
- Dark Pulse  
- Water Shuriken  
- Spikes  

Kartana @ Choice Scarf  
Ability: Beast Boost  
Shiny: Yes  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Leaf Blade  
- Sacred Sword  
- Knock Off
- Defog  

Tapu Lele @ Choice Specs  
Ability: Psychic Surge  
Shiny: Yes  
EVs: 36 HP / 176 Def / 184 SpA / 112 Spe  
Modest Nature  
IVs: 0 Atk  
- Psyshock  
- Moonblast  
- Psychic  
- Hidden Power [Fire]