There is a Legacy version
here.
Twin Takedown [one-action] Feat 4*Flourish Ranger Source Player Core pg. 157 2.0Archetype AvengerRequirements You are wielding two melee weapons, each in a different hand
* This version of the Twin Takedown feat is intended for use with an Archetype and has a different level for access than the
original feat.
You swiftly attack your hunted prey with each of your weapons, potentially combining their damage into a single devastating attack. Make two Strikes against your hunted prey, one with each of the required weapons. If both hit the same hunted prey, combine their damage for the purpose of its resistances and weaknesses. Apply your multiple attack penalty to each Strike normally
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.