Path of the Cosmos

Barbarians who follow the path of the cosmos fuel their rages with a cosmic power that runs through their blood. Barbarians who follow the path of the cosmos may have been exposed to the warping influence of the far realm or limbo, affected by a mind flayers psionic power, work with your dm to determine what caused you to follow the path of the cosmos

Barbarian Level	Feature
3rd	Aberrant Form
6th	Cosmic Soul
10th	Horrifying Presence
14th	Eldritch Rage

Aberrant Form

Starting when you chose this path at 3rd level the eldritch nature within you shapes your rage. When you enter your rage, you can transform. Until the rage ends you gain the following effects:

• You gain temporary hit points equal to 5 × your barbarian level. 
• Your melee weapon attacks deal an extra 1d4 force damage. 
• When you hit a creature with a melee weapon attack you can expend up to 2 hit dice to deal an extra 1d12 force damage per hit dice expended, you can use this feature an amount of times equal to your proficiency bonus. 
• Your body transforms into an aberration. Work with your DM to determine what this transformation looks like. 

Cosmic Soul

at 6th level the eldritch energy within you causes even more changes. You gain proficiency in intimidation. If you already have proficiency in this skill, you gain proficiency in a different skill of your choice. Additionally when you finish a long rest you gain one of the following benefits, this benefit lasts until your next long rest:

Adaptation of the Depth

You gain a swimming speed equal to your walking speed and can breathe underwater.

Otherworldly Sight

You can see normally in darkness, both magical and nonmagical, to a distance of 100 feet.

Eldritch Charm

You add double your proficiency bonus to any Charisma (Persuasion) and Charisma (Deception) checks. 

 

Horrifying Presence

Starting at 10th level, the transformation you go through when you enter a rage becomes so unsettling that it can terrify your foes. When you enter your rage choose a number of creatures that you can see equal to your proficiency bonus, these creatures must make a wisdom saving throw equal to 8 + your proficiency bonus + your Charisma modifier. On a failed save a creature becomes frightened by you until the end of your next turn.

While a creature is frightened by you in this way its speed is reduced to 0

Eldritch Rage

Starting at 14th level when you rage you can complete your transformation into an eldritch being. Once per long rest, when you rage you can chose to complete your transformation into an aberration, while raging in this way you gain the following effects:

• Your speed increases by 10 feet. 
• Your weapon attacks ignore resistance to the damage that they deal, this includes the additional damage dealt by Aberrant Form. 
• Once per rage, when you fall unconscious you can use your reaction to drop to 1 hit point instead.
• Your weapon attacks score a critical  hit on a 19 or a 20.