> Hippowdon is an extremely potent mixed wall in UU thanks to its amazing bulk, solid typing, and reliable recovery. Its naturally high Defense allows it to invest in Special Defense to check Salamence and Thundurus-T while still answering physical attackers like Excadrill, Zygarde-10%, and Cobalion. Its bulk even lets it trade with threats that hit it super effectively like Tangrowth and Rotom-W and cripple them with Toxic. Hippowdon is a great Stealth Rock setter due to matching up well against common entry hazard removers like Salamence, Mandibuzz, Excadrill, and Tentacruel and easily setting Stealth Rock against Pokemon it walls like Excadrill, Cobalion, and Nihilego without Grass Knot. Utility options, like Toxic to cripple Tangrowth and Rotom-W and Whirlwind to keep setup sweepers like Scizor from setting up on it, limit Hippowdon's passivity.
Why is this less important than Chansey's special defense and Skarmory's physical defense and hazard moves?