Gliscor @ Toxic Orb  
Ability: Poison Heal
Tera Type: Ground  
EVs: 244 HP / 12 Def / 252 SpD  
Careful Nature  
- Earthquake  
- Spikes  
- Protect  
- Toxic

Gliscor is prob the best jolteon check in the tier, with good sp. def bulk, longetivity, and the ability to shake off battle spines damage with protect it allows gliscor to not be worried against it.