Physically Defensive:
Dragonite (Doublade) @ Leftovers
Ability: Multiscale
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Roost
- Iron Head
- Toxic / Thunder Wave
- Roar / Heal Bell / Defog
Notes: A more specially defensive spread is viable, too.

Levitate:
Flygon (Doublade) @ Leftovers
Ability: Levitate
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Iron Head
- Roost
- Toxic
- Defog

Swords Dance:
Dragonite (Doublade) @ Leftovers
Ability: Multiscale
EVs: 248 HP / 252 Atk / 8 Spe
Adamant Nature
- Swords Dance
- Iron Head
- Fire Punch / Sacred Sword / Extreme Speed
- Roost