Warcries grant 10 Rage per 5 Power if you have less than 25 Rage Warcries Sacrifice 10 Rage if you have at least 25 Rage Exerted Attacks deal 50% more Damage if a Warcry Sacrificed Rage Recently 
War Bringer is a notable Ascendancy passive skill for the Berserker. It grants Rage based on the amount of power of a warcry. If you have at least 25 Rage, it sacrifices that much Rage to make your exerted attacks deal more damage for 4 seconds.
Warcries are enhanced proportionate to the power of nearby enemies, calculated at the time they are cast. Normal monsters are counted as 1, magic monsters as 2, rare as 10, unique as 20, and players as 5.
Now grants you and nearby allies 20% increased attack speed if you've warcried recently (from 10%). Now grants 15% chance to deal double damage if you've warcried in the past 8 seconds. No longer causes you and nearby allies to deal increased damage if you've warcried recently.