ABSOLUTE PEAK (Zygarde-Complete) @ shedshellsafetygoggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Impish Nature  
- Reflect  
- Shore Up  
- Haze  
- thousandwavescoreenforcer  

the spore set (Zygarde-Complete) @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Spore  
- Shore Up  
- Haze  
- U-turn  

anti hp kart mostly (Steelix-Mega) @ shedshellsafetygoggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Impish Nature  
- Reflect  
- Shore Up  
- Haze  
- Thousand Waves  

better steelix without ground stab (Aggron-Mega) @ shedshellsafetygoggles  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Reflect  
- Shore Up  
- Haze  
- Core Enforcer  

idk why you'd use this (Slowbro-Mega) @ Shed Shell  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Reflect  
- Shore Up  
- Haze  
- coreenforcerscald