The Veracious Grentch is a subspecies of Grentch that is found in the Bone Pits during Wintersday. They use the snowball fighting skills related to their profession, or a miscellaneous snowball fighting skill.
Grentches in the Underworld have a projectile attack which uses the same projectile graphics as the Snowball spell. This means that, unlike players, they can continue to attack while their skills are disabled. The attack only does 18 damage to armor 60 characters.