Level 2
You have learned how to capitalize on your allies’ successes in battle, inspiring them to further incredible feats. You learn one victory cry, chosen from those listed below. As a reaction when you or an ally scores a critical hit against a significant enemy with an attack or drops a significant enemy to 0 Hit Points, you can issue a victory cry, choosing one victory cry you know and providing its benefits to all allies within 60 feet of you (but not yourself).
Each victory cry can be learned up to two times: the first time at 2nd level or higher, and the second time at 9th level or higher. Limited victory cries affect only the ally that scored a critical hit or reduced an enemy to 0 Hit Points; these are labeled with an asterisk (*). An ally can be affected by each specific victory cry (regardless of its source) only once until they take a 10-minute rest to regain Stamina Points.
Source
Near Space pg. 144