ignorance is bliss (Slowbro) @ Sitrus Berry  
Ability: Oblivious  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Iron Defense  
- Calm Mind  
- Stored Power  
- Rest  

world could change (Urshifu) @ Assault Vest  
Ability: Unseen Fist  
EVs: 252 HP / 76 Atk / 180 Def  
Adamant Nature  
- Close Combat  
- Sucker Punch  
- Wicked Blow  
- Counter  

imposter mode (Magnezone) @ Choice Specs  
Ability: Sturdy  
EVs: 80 HP / 68 Def / 224 SpA / 136 Spe  
Modest Nature  
IVs: 0 Atk  
- Thunderbolt  
- Flash Cannon  
- Hyper Beam  
- Mirror Coat