CLASS: BIOCONSTRUCT

   This powerful but simple-minded giant boasts a high concentration of minerals and metals in its flexible armor plating, impervious to chemicals, temperature extremes and energy weapons of every sort. Besides obvious military application, Ghoulem are especially sought after by the farming industry; their diet consists almost exclusively of soil, from which they extract all inorganic elements and deposit the purest, most effective fertilizer.

  A Ghoulem never moves of its own free will and simply "shuts down" with no immediate tasks to complete, freezing in place until given new orders.