Barbarians who have quested with the mighty Bear Tribe are masters of the Mace. From simple wooden clubs to the contemporary, armor-defeating flanged mace, warrior masters wield these weapons to devastating effect. As the Bear shaman, Koth, said to those who favor the sword and axe, "When you are beset by hordes of the walking dead, do not come weeping to me if you have turned away from the wisdom of Bear."
Mace Mastery is one of the Barbarian weapon mastery skills. It is a passive skill, thus it is constantly in effect once learned. It improves the Barbarian's fighting skills when wielding blunt weapons: clubs, maces, hammers, scepters, wands, and staves. It should be noted that this skill works with all blunt weapons, including staves - elite staves have similar damage to elite pole arms but requires a fraction of the stat points. The main advantage of maces over other weapon types is that most maces do not have dexterity requirements, thus giving them appeal to Barbarians who do not want to spend points there. Another thing to consider, however, is the base damage of some of these weapons- a War Hammer, for instance, although slower than choosing a Great Sword, is one of the best one-handed Normal tier weapons available to the hero damage wise. Combine that with some good attack speed, and a Barbarian would be a force to be reckoned with.