Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 232 HP / 120 Def / 144 SpD / 12 Spe  
Careful Nature  
- Leech Seed  
- Protect  
- Substitute  
- Heavy Slam  

Zygarde @ Groundium Z  
Ability: Power Construct  
EVs: 220 HP / 36 Atk / 216 Def / 36 Spe  
Impish Nature  
- Coil  
- Thousand Arrows  
- Substitute  
- Extreme Speed  

Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 16 HP / 180 SpA / 96 SpD / 216 Spe  
Timid Nature  
- Flame Charge  
- Blast Burn  
- Solar Beam  
- Air Slash