There is a Legacy version 
here.

Crane Stance  [one-action] Feat 4*Monk Stance Source Player Core 2 pg. 118 1.1Archetypes Martial Artist, 
Wild MimicRequirements You are unarmored.
* This version of the Crane Stance feat is intended for use with an archetype and has a different level for access than the 
original feat.
Your arms flutter like a crane's wings. You gain a +1 circumstance bonus to AC, but the only Strikes you can make are crane wing attacks. These deal 1d6 bludgeoning damage; are in the 
brawling group; and have the 
agile, 
finesse, 
nonlethal, and 
unarmed traits.
 While in Crane Stance, reduce the DC for 
High Jump and 
Long Jump by 5, and when you 
Leap, you can move an additional 5 feet horizontally or 2 feet vertically.
Archetype Use
This feat can be used for one or more archetypes in addition to the listed classes. When selected this way, the feat does not have its class traits.
Crane Stance Leads To...
Crane FlutterTraits
Stance: A stance is a general combat strategy that you enter by using an action with the stance trait, and you remain in for some time. A stance lasts until you get knocked out, until its requirements (if any) are violated, until the encounter ends, or until you use a stance action again, whichever comes first. After you take an action with the stance trait, you can’t take another one for 1 round. You can enter or be in a stance only in encounter mode. You can Dismiss a stance.