There is a Legacy version
here.
Unbalancing Sweep [three-actions] Feat 14*Barbarian Flourish Source Player Core 2 pg. 83Archetypes Mauler,
Mauler* This version of the Unbalancing Sweep feat is intended for use with an Archetype and has a different level for access than the
original feat.
You make a great sweep with your weapon or fists about yourself, knocking creatures off their feet and away from you. Choose up to three enemies within your reach and choose whether to
Shove or
Trip all three of them. Whichever of the two options you choose, roll a separate
Athletics check against each enemy, performing the same action against each enemy. Each attempt counts toward your multiple attack penalty, but don't increase your penalty until you have made all the attempts.
Archetype Use
This feat can be used for one or more Archetypes in addition to the listed Classes. When selected this way, the feat is not considered to have its class traits.
Traits
Flourish: Actions with the flourish trait are special techniques that require too much exertion for you to perform frequently. You can use only one action with the flourish trait per round.