You can render your foes temporarily helpless with a solid blow to the head.

<php>echo “<b>Prerequisites:</b>”;</php> Weapon Mastery (Maces)
<php>echo “<b>Benefit:</b>”;</php> As a standard action, you can make a single melee attack against a foe with a mace. On a hit, the target must make a Fortitiude save (DC 10 + half you character’s level + your Strength modifier) or be stunned for one round.