Golem

“Its boulder-like body is extremely hard. It can easily withstand dynamite blasts without damage.”

— Pokémon Red

“Once it sheds its skin, its body turns tender and whitish. Its hide hardens when it's exposed to air.”

— Pokémon Yellow

“It sheds its skin once a year. The discarded shell immediately hard­ ens and crumbles away.”

— Pokémon Gold