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There is a Legacy version here.

PFS StandardWhirlwind Strike [three-actions] Feat 14

Barbarian Fighter Flourish 
Source Player Core pg. 150 2.0, Player Core 2 pg. 84 1.1

You lash out in a blur of motion, attacking all nearby adversaries. Make a melee Strike against each enemy within your melee reach. Each attack counts toward your multiple attack penalty, but you do not increase your penalty until you have made all your attacks.

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.