Diancie-Mega @ Diancite  
Ability: Magic Bounce  
Shiny: Yes  
EVs: 240 HP / 16 Def / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Substitute  
- Endeavor  
- Diamond Storm  

Volcarona @ Leftovers  
Ability: Swarm  
EVs: 128 HP / 196 SpA / 184 Spe  
Timid Nature  
- Substitute  
- Quiver Dance  
- Bug Buzz  
- Flamethrower  

Celesteela @ Occa Berry  
Ability: Beast Boost  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Air Slash  
- Flamethrower  
- Hidden Power [Ground]  
- Autotomize  

Garchomp (M) @ Dragonium Z  
Ability: Rough Skin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Outrage  
- Fire Fang  

Serperior @ Rocky Helmet  
Ability: Contrary  
EVs: 208 HP / 48 Def / 252 Spe  
Timid Nature  
- Leaf Storm  
- Taunt  
- Glare  
- Defog  

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