There is a Remastered version
here.
Tumbling Strike [one-action] Feat 8Legacy Content
Archetype Flourish Move Source Advanced Player's Guide pg. 155 2.0Archetype AcrobatPrerequisites Acrobat DedicationRequirements You are adjacent to an enemy.
Attempt an Acrobatics check against the Reflex DC of an enemy adjacent to you.
Critical Success You move through the enemy's space to an unoccupied space on the other side of the enemy from your starting position. This movement doesn't trigger reactions. You can't move farther than your Speed, and you must end your movement adjacent to the enemy whose space you moved through. After moving, you make a melee Strike against the enemy whose space you moved through, and the enemy is
flat-footed against that Strike.
Success As critical success, but the enemy isn't flat-footed against the Strike.
Failure You remain in your original space but can still Strike.
Critical Failure No effect.
Traits
Archetype: This feat belongs to an archetype.
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.
Move: An action with this trait involves moving from one space to another.