There is a Legacy version
here.
Spring from the Shadows [one-action] Feat 14*Flourish Rogue Source Player Core pg. 176 2.0Archetype Shadowdancer* This version of the Spring from the Shadows feat is intended for use with an Archetype and has a different level for access than the
original feat.
You leap from hiding and assail your target. You Stride up to your Speed, but you must end your movement next to an enemy you’re hidden from or undetected by. You then Strike that enemy; you remain hidden from or undetected by that creature until after you Strike. You can use Spring from the Shadows while Burrowing, Climbing, Flying, or Swimming instead of Striding if you have the corresponding movement type.
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: Flourish actions are actions that require too much exertion to perform a large number in a row. You can use only 1 action with the flourish trait per turn.