Necrozma @ Groundium Z  
Ability: Prism Armor  
EVs: 112 HP / 252 SpA / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind / Stealth Rock 
- Photon Geyser  
- Earth Power  
- Signal Beam

Necrozma @ Choice Specs  
Ability: Prism Armor  
EVs: 112 HP / 252 SpA / 144 Spe  
Modest Nature  
IVs: 0 Atk  
- Photon Geyser  
- Heat Wave / Psyshock
- Earth Power / Psyshock
- Signal Beam