An ice troll has the general form of a troll but its cold, semi-transparent body seems to have been chiselled from blue-tinged ice. Ice trolls prefer underground dwellings such as dungeons or caverns and will always lair near running water if possible or, failing that, the wettest spot they can find. These trolls regenerate 2 hp per round and are capable of rebonding severed limbs, but only if the limb is immersed in water. A severed limb will move toward the nearest body of water if one is within 30-ft. Severed limbs will not attack independently.

In combat, ice trolls attack with two claw attacks for 1d8 points of damage apiece. As with other types of trolls, these attacks can be directed at two different opponents. Ice trolls can only be hit with magical weapons and are immune to cold based attacks of any kind. Fire inflicts double damage upon ice trolls.

Ice trolls have the superior 90-ft infravision and an acute sense of smell. They also share the racial traits of most troll types, having great strength, being fearless in combat, and attacking until either victorious or slain.