You have consumed the Heart of the Berserkers Might and learned the true power of your rage.

Increase Strength score maximum by 2 and Your strength is increased by 2.

While you are raging you can use your bonus action to use another rage charge to activate absolute rage.

While in absolute rage all of your attacks are now reckless no matter what and you add an additional 5 damage to your melee attacks. You also get advantage on wisdom and constitution saving throws. (all other rules of rage still apply)