Path of the Frostrager

All barbarians are driven by a fiery anger inside their souls. However, barbarians who follow the Path of the Frostrager learn how to channel the anger inside them into cold, unforgiving fury. 

Frostragers are typically born and raised in harsh freezing environments, blessed by the ancient spirits of frost with unwavering strength. Some are champions or warchiefs, while others walk a lonely path, seeking to test their might against the strongest foes that wander the frozen wilderness. 

Frostrage

Starting when you choose this path at 3rd level, when you enter your rage, you can unleash the cold fury inside your soul. Until your rage ends, you manifest the strength of ice. Choose one of the following options each time you rage. 

Frost Aura

You emit a cold aura that extends 10 feet from you in every direction, but not through total cover. All creatures that start their turn in your aura takes cold damage equal to your Constitution modifier, and must succeed on a Constitution saving throw (DC equal to 8 + your proficiency bonus + your Constitution modifier) or have their speed reduced by 10 feet until the start of their next turn. 

Glacial Cowl

The air freezes around you, coating your body in a crust of ice. When choosing this option, you gain temporary hit points equal to your proficiency bonus + your Constitution modifier. You become immune to fire damage while raging with this option. 

Winter's Bite

Your icy rage is channeled through your strikes, as layers of ice form on your weapons. Creatures you hit with weapon attacks take 1d4 Cold damage when this option is selected. This damage increases to include an additional d4 at 6th level, 9th level, 13th level, 16th level. 

Frozen Blood

At 6th level, the frozen blood in your veins changes your metabolism, granting you the following benefits: 

• You gain resistance to cold damage
• Your heartbeat slows, lowering your body temperature. You have advantage on Constitution saving throws. 
• Instead of sleeping, your body enters a state of hibernation. You are not considered unconscious during this period of time. 

Freezing Gaze

At 10th level, you can look into the soul of an enemy and freeze them to the bone. As a bonus action, choose a creature you can see within 30 feet of you. The target must success on a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Constitution modifier) or become paralyzed until the end of your next turn. A creature is immune to this effect if they are immune to Cold damage. On a failed save, the enemy becomes frightened of you. 

Once you use this feature, you cannot use it again until you finish a short rest. 

Immovable Glacier

At 14th level, whenever you rage, the spirits of frost empower your cold fury. While raging, you gain the following benefits:

• You gain immunity to cold damage
• You can't be knocked prone 
• When you score a critical hit against a creature with a weapon attack, ice shards explode from the wound, and all creatures within 10 feet of the target take cold damage equal to your barbarian level