Nebulous
Legend
I've had this come up before. With both trolls and hydras. It depends on how rare such a monster is I suppose in the particular campaign world. Or, you could call your troll a "tommyknocker" and describe it different, but it still uses the troll statblock.
I have a new group of D&D players, really young people, and I can't wait to see their faces when the first troll they meet slithers its intestines back inside and stands up to stare at them with those soulless coal black eyes!
I have a new group of D&D players, really young people, and I can't wait to see their faces when the first troll they meet slithers its intestines back inside and stands up to stare at them with those soulless coal black eyes!