Barbarians in the Feywild use the wild magic to guide them in combat, surrendering wholly to chaos.

Mercury Rage

Starting when you take this path at 3rd level, your rages propel you into a flurry of senseless carnage, embracing the mercurial chaos that is the primordial backdrop of life in the multiverse.

Choose six Mercury Actions (listed below) and label them with the numbers 1-6. When you first enter a rage (as long as you haven't taken an action yet that turn) and at the start of each of your turns while you are raging, you can choose to roll a d6 twice, choosing either result and taking the corresponding Mercury Action as your action for that turn. Mercury Actions have the following extra rules.

If the action forces a creature to make a saving throw, the DC is 8 + your Wisdom modifier + your proficiency bonus.

You don't benefit from your Extra Attack feature if the action allows you to make an attack.

If an action is impossible to take, you instead waste the action.

You can change your chosen options when you finish a long rest.

Your Mercury Rage does not prevent you from taking other actions otherwise available to you, such as to Attack or to Dash, unless you have already rolled for a Mercury Action.

Your Mercury Rage improves at 6th level: instead of rolling a d6 twice, you roll a d8 twice. Choose one additional option to be labelled number 7, and when you roll an 8 on either die, you can choose to reroll that die and take the corresponding action in addition to the action corresponding to the result of the other die, potentially taking two actions on your turn instead of one. If you roll another 8, pr if you roll a result for an action you have already taken on that turn, you waste this extra action.

Your Mercury Rage improves again at 10th level: when you roll an 8 when determining your Mercury Action, instead of rerolling the die, you can select any of your seven chosen Mercury Actions.

Your Mercury Rage improves a final time at 14th level: instead of rolling a d8 twice, you roll a d10 twice. A roll of 9 or 10 is treated the same as an 8.