Berserker

You have tempered your rage into a violent fury that sweeps across the battlefield. This comes at a cost however, and you trade control for indomitable fortitude and unrivaled power.

When you use your rage feature and are bloodied, you can choose to also go berserk. While going berserk, you gain the following:

• When you are reduced to 0 hit points and not killed outright, you may choose to immediately expend any number of available recovery Hit Die. You gain temporary hit points equal to the result rolled after damage is dealt. These temporary hit points last for one minute. Once you use this feature, you cannot use it again until the start of your next berserk.

• At the start of your turn, you have disadvantage against all targets except the nearest creature. If two or more creatures are equidistant to each other, you roll to see which one you attack. In some cases, the DM might let you target one over others because of something pertaining to your character. 

• If your first weapon attack hits a creature, it is scored as a critical hit. You do not gain the benefits for this feature again until the start of your next berserk.