Battle Cry

Battle Cry is a recurring ability in the Final Fantasy series. It generally raises the Attack or Strength of the user.

Final Fantasy X-2
Battle Cry is a song available to the Songstress. It will raise the Strength of all party members for the duration of the battle. However, using Battle Cry many times over and over will not continually raise your Strength. Each of the girls' Battle Cries are different. They all harmonize their respective theme songs.

Final Fantasy XII
Battle Cry is an enemy ability that improves Attack power.

Final Fantasy Tactics A2: Grimoire of the Rift
Battle Cry is an ability of the Ravager class, learned for 200 AP from the Ancient Sword. It raises the attack of the user, at the cost of lowering its defense.