Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Waterfall  
- Crunch  
- Earthquake  

Tapu Fini @ Leftovers  
Ability: Misty Surge  
EVs: 252 Def / 4 SpA / 252 SpD  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Blizzard  
- Nature's Madness  
- Scald  

Tangrowth @ Assault Vest  
Ability: Regenerator  
EVs: 12 HP / 252 Def / 244 SpD  
Sassy Nature  
- Giga Drain  
- Knock Off  
- Hidden Power [Fire]  
- Earthquake  

Araquanid @ Focus Sash  
Ability: Water Bubble  
EVs: 4 HP / 252 Atk / 252 SpD  
Careful Nature  
- Lunge  
- Liquidation  
- Sticky Web  
- Mirror Coat  

Dragonite @ Leftovers  
Ability: Multiscale  
EVs: 4 Def / 252 SpA / 252 SpD  
Modest Nature  
IVs: 0 Atk  
- Ice Beam  
- Flamethrower  
- Thunderbolt  
- Roost  

Xurkitree @ Psychium Z  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk / 30 Def  
- Thunderbolt  
- Hypnosis  
- Tail Glow  
- Hidden Power [Ice]