The official GemStone IV encyclopedia.
The heavily armored snow madrinol moves ponderously through the area searching for easy prey to consume. Plates of extremely thick slate grey skin cover this quadruped on nearly all its exterior surfaces except its long, leathery tail and cupped, upright ears. Tufts of off-white fur protrude between the plates, however, giving the impression that the madrinol is wearing pieces of armor rather than a total covering. Unique to the snow madrinol seems to be its flared, circular hooves. Sharp claws protrude from all sides of each hoof, allowing the creature to grip the ice or frozen ground for greater stability.
The Snow Madrinol is the weakest of the three inhabitants of Gossamer Valley, with a lower AS than the glacial morph, and a maneuver that pales in comparison to the animated slush's slush wall attack. Unlike the other two, madrinols are not immune to stun or other disabling techniques, and can be dealt with using spells such as Blood Burst (701) or Bone Shatter (1106), which are effective only on "living" creatures. They have an average AS, and while they possess rather strong natural armor, hindering melee attacks, they possess no other particular defensive strengths. The only maneuver they possess is the Tail Sweep, which can inflict up to 20 RT, though it is often easily avoided. A single madrinol is likely incapable of killing someone by tail sweeping him or her, but the true danger of this maneuver comes into play when used around the other inhabitants of Gossamer Valley. The animated slush has a plethora of dangerous attacks which will be especially dangerous on a proned individual, while the glacial morph's high AS and high DF weapon base can quickly dispatch anyone that they can hit.
Snow madrinols have skin that is the equivalent of AsG 15 armor, augmented chain. They drop a variety of fairly high quality gems as well.