Path of the World Serpent

In battle you are strengthened by the gifts granted by Jörmungandr. The Serpent fuels your rage with strength and vigor that rivals the gods themselves. 

Jötunn's Might

At 3rd level, when you adopt this path, when you enter your rage you can grow up to one size larger. This effect ends once your rage ends.

Your AC while unarmored is equal to 13 + your Dexterity modifier + your Constitution modifier. This effect does not stack with AC granted by shields. This replaces Unarmored Defense. 

Enemy of the Gods

 

Starting at level 6, you gain resistance to lightning and thunder damage. Additionally when struck by magical damage you are imbued with that same damage and the next melee attack you perform deal 1d6 extra damage of that type and ignores all resistances towards that type. If struck by lighting or thunder damage the damage increases by another 1d6. 

This damage is increased an additional 1d6 at level 11th and 20th level. 

Grasp of The World Serpent

Starting at 10th level, while under the effects of Jötunn's Might you ignore all size restrictions to grapple (Ex: A Medium creature can now grapple creatures Huge and above). Whilst grappling you may use an action to constrict the affected creature to deal 2d12 + your strength modifier in bludgeoning damage. Constrict can only be used once per round. If you are imbued with magic from Enemy of the Gods you may apply that damage to constricted enemies. 

After your rage ends if you grappled a creature outside the normal limitations of grappling you take 1 point of exhaustion.

Bringer of Ragnarok

Starting at level 14, when you enlarge for the effects of Jötunn's Might you may gain 2 sizes instead and you cannot be forced to move by any means.