Sylveon @ Leftovers  
Ability: Bulletproof  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Shadow Ball  
- Rainbow Blast  
- Slack Off  

Sylveon @ Ghostium Z  
Ability: Bulletproof  
Tera Type: Fairy  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Shadow Ball  
- Rainbow Blast  
- Slack Off  

Sylveon @ Choice Specs  
Ability: Bulletproof  
Tera Type: Fairy  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Rainbow Blast  
- Shadow Ball  
- Mystical Fire  
- U-turn