Blissey (F) @ Magic Bounce  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Soft-Boiled  
- Teleport  
- Toxic  

Heatran @ Levitate  
Ability: Flash Fire  
EVs: 252 HP / 128 SpA / 128 SpD  
Modest Nature  
IVs: 0 Atk  
- Magma Storm  
- Earth Power  
- Taunt  
- Stealth Rock  

Toxapex @ Prankster  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Haze  
- Toxic Spikes  
- Recover  

Umbreon @ Unaware  
Ability: Inner Focus  
EVs: 252 HP / 252 Def / 4 SpD  
Calm Nature  
IVs: 0 Atk  
- Foul Play  
- Wish  
- Protect  
- Heal Bell  

Corviknight @ Volt Absorb  
Ability: Pressure  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Body Press  
- U-turn  
- Roost  
- Defog  

Sylveon @ Storm Drain  
Ability: Cute Charm  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Moonblast  
- Mystical Fire  
- Heal Bell  
- Yawn