The Zexhund, otherwise known as Zexaki’s Hound, appears as a large dog with an even larger head. The largest of the breed weigh 320 pounds, are about five feet long, and are four feet tall at the shoulder. Although slow movers by foot, they can strike quickly with their hammer-like heads, doing 3d6 points of damage. If they are ever struck by a blow, they instantly become invisible until they make another attack.

The zexhund is not particularly aggressive, and they will often retreat once they become invisible. They were bred to transport platinum coins and gems using small coffers attached to collars. For this reason, tenacious adventurers may pursue them even after they become invisible.