You can throw aside all concern for defense to attack with fierce desperation. When you make your first attack on your turn, you can decide to attack recklessly. Doing so gives you advantage on melee weapon attack rolls using Strength during this turn, but attack rolls against you have advantage until your next turn.
In battle, you fight with primal ferocity. On your turn, you can enter a rage as a bonus action. You have advantage on Strength checks and Strength saving throws. When you make a melee weapon attack using Strength, you gain a +2 bonus to the damage roll.
Your rage lasts for 3 rounds. It ends early if you are knocked unconscious or if your turn ends and you haven't attacked a hostile creature since your last turn or taken damage since then.