PAPO Stone Golem

The Stone Golem has a huge stone club and its arm is articulated. It spends its time in a dormant state, half-buried underground, because in this way it can absorb neighbouring minerals and can contain ingots of metal. The only bit of itself it lets you see looks like a rock. It can stay in this hibernation indefinitely, but will violently attack anyone who enters its territory, and will chase off those who come to close, throwing rocks torn from the ground.