Spriggans

(Armor -4, Health 12 to 26, Damage 1-8/1-8/1-10)

Walking trees. Tough hides (bark?) and lots of hit points. No missles from these guys. They like to slug it out. Treasure is potion ingredients and sometimes a few gold pieces.  Supposedly they regenerate two or three times and come back at you, but I've never seen it.