Path of the Monsoon

Your foot falls, become scorches, your weapon attacks ring out in a thunderous cry, your soul echoes in the eye of the storm, and your rage laughs in thunderous applause.

Eye of the Storm

The storm swirling within your soul has left you adept at resisting its effects. Beginning at 3rd level, you gain resistance to Thunder and Lightning damage.

Thunderous Fury

Starting when you choose this path at 3rd level, you can channel thunderous fury into your weapon strikes. While you’re raging, the first creature you hit on each of your turns with a weapon attack takes extra damage equal to 1d6 + half your barbarian level. The extra damage is thunder or lightning. You choose the damage type when you gain this ability.

Radiant

The extra damage you deal with Thunderous Fury is Lightning.

Thunder

The extra damage you deal with Thunderous Fury is Thunder.

Cloudburst

Starting at 6th level, the wrath of the storm surging within you begins to explode from you more violently. Whenever you are raging and hit a creature with a weapon attack, that creature must make a strength saving throw against your Monsoon DC (8 + Proficiency + Constitution Modifier) or be pushed 10 feet away and be knocked prone. 

Electrified Personification

Beginning at 10th level, when you choose to rage, you can choose to forgo your damage resistances granted by your rage. If you do, you instead gain a wreathing mass of lightning covering your body. You gain +1 to your ac. Any creature that hits you with an attack must make a constitution saving throw or take 1d12 lightning damage, or half on a success. Once you use this feature, you can’t use it again until you finish a long rest.

Expansive Typhoon

Beginning at 14th level, your storms influence has now expanded past yourself. Whenever you enter a rage, choose a number of allies equal to your constitution modifier and that are within 10 feet of you. When you enter your rage, lightning leaps from you and onto them. So long as you continue to rage, their attacks now deal an additional 2d6 lightning damage.