Aegislash @ Ghostium Z  
Ability: Stance Change  
EVs: 240 HP / 252 SpA / 4 SpD / 12 Spe  
Quiet Nature  
IVs: 0 Spe  
- King's Shield  
- Shadow Ball  
- Laser Focus  
- Shadow Sneak  

Greninja @ Poisonium Z  
Ability: Protean  
EVs: 40 HP / 28 Atk / 252 Def / 4 SpA / 184 Spe  
Naive Nature  
- Rock Tomb  
- Gunk Shot  
- Ice Beam  
- Surf  

Altaria-Mega @ Altarianite  
Ability: Pixilate  
EVs: 72 HP / 252 Atk / 12 Def / 172 Spe  
Jolly Nature  
- Cotton Guard  
- Roost  
- Dragon Dance  
- Giga Impact