Coordinate Ambush [one-action] to [two-actions]
Source Player Core pg. 105
With perfect timing, you call on hidden allies to take down an unsuspecting target. Designate an enemy creature within 60 feet and an ally within 60 feet. If the ally is hidden, undetected, or unnoticed to the target at the start of their turn, they treat the target as off-guard until the end of their turn instead of when they become visible to the target.
Lead by Example If you used two actions, Hide or Sneak. Until the start of your next turn, you can Strike the enemy target as a reaction the first time the ally you targeted attacks your designated enemy.
Lead by Example If you used two actions, Hide or Sneak. Until the start of your next turn, you can Strike the enemy target as a reaction the first time the ally you targeted attacks your designated enemy.