My vision of mace-style weapons can be seen as hand-held Troika's. I mean this in the facet that the maces would inflict that AOE slam when fully charged.
Normal Attack(s)
The first two strikes would be a simple left-to-right slash which would do light-to-medium damage, and the third and final strike would result in a frontal charge with a 180-degree arc of attack; that does a heck-ton of damage. with one hell of a recovery time.
This is so that people could either decide to do two attacks and get out, or go all in.
Charge Attack
This is what gives the Mace archetype its functionality. Once charged it basically does the Troika charge attack i.e. step back, jump forward, slam.
Why?
This is weapon is for those who want the capability of pushing people away from you, without being encumbered with the slow swing speed of the Troika.
So you're just asking for a weapon that's almost exactly the same as a Troika...but hits faster?
Get a swifty = problem solved.