Righteous Anger

As a bonus action you give in to your murderous impulses, bursting into a fit of rage and gaining the following benefits:

• When you make a melee weapon attack using strength, you gain a +2 bonus to damage rolls. This bonus increases to +3 at level 9, and again to +4 at level 16. 
• You gain resistance to bludgeoning, piercing, and slashing damage

You can not cast or concentrate on spells while in this state. The fit of anger lasts for 1 minute, 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. You can also attempt to calm yourself and end it early on your turn as a bonus action. You can use this feature a number of times equal to half your proficiency bonus per long rest.