Recommend some Pokémon that are good against Hippowdon

Hippowdon has high physical defense, so you need to take it down with special attacks. Try using a special attacker with Water or Grass type, or utilize the 'Unaware' ability, hmm!

Ninja Transformation Skill: Full Bind

I just bursted them down and caught them.

Ganin Convertor Full Bind HD32 Hamadon One-shot

Hippowdon is easy to catch if you use Taunt or exploit its weaknesses with a special attacker.