Nils's Porygon2 the Battle Champion (Porygon2) @ Eviolite  
Ability: Download  
Level: 50  
Tera Type: Flying  
EVs: 252 HP / 4 Atk / 126 Def / 92 SpA / 36 SpD  
Quiet Nature  
IVs: 0 Spe  
- Tera Blast  
- Ice Beam  
- Recover  
- Trick Room