FusionDex

Much of Koffrock's rock-hard body is filled with mysterious and highly reactive matter: it easily freezes or evaporates depending on the weather. It is for this reason that Koffrock appears to almost never roam from its cavernous mountain domain.

A Pokémon that is made entirely of rocks and boulders. Getting up close to a Koffrock will give you a chance to observe, through its thin skin, the toxic gases swirling inside.