Rock / Ice
Restores a little HP when withdrawn from battle.
Normal-type moves become Ice-type moves.
Cororus are found in huge numbers travelling in spaces between mountains said to be carved in said mountains by a pokemon even greater than the majestic Cororus that trudge through there. However, after they migrate from mountain to mountain, they usually split up their groups and live in smaller numbers of about 5. Their feet are very noisy.