Path of the Malison

The yuan-ti people have kept many secrets close to the chest for centuries, grasping for powers beyond their control. This hunt has yielded methods that have given them unnatural powers of shape-shifting and altering their body parts to closer resemble the snake gods they worship. Those dark gods required great sacrifice and offerings to attain such capabilities and promise further devotion would eventually lead followers to achieve the perfect form: that of the divine snake-man. Not many outside the yuan-ti society have come to know these rituals and lived to tell the tale. You, however, are one of those few souls. The way you ultimately achieve this form is your own, but communion with those serpent deities has fueled your rage into a religious zeal and a primal blood thirst.

Shapechange

The serpent gods have rewarded your sacrifice with shifting abilities, molding parts of your body to resemble that of a snake.

At 3rd level, upon raging you are able to activate one of three Malison Blessings. This blessing lasts until your rage ends and can be reactivated the next time you rage.

-Blessing of the Winding Limbs: Your reach increases by 5 ft. Additionally, your unarmed strike is replaced by a bite action dealing 1d6+Strength modifier of piercing damage.

-Blessing of the Peaceful Fang: You can use your bonus action to deliver a bite dealing 1d6+Strength modifier of piercing damage. Once per rage, you can attempt to deliver a debilitating poison through this bite, forcing the target to succeed a Constitution saving throw of 8+your proficiency and Constitution modifier or become paralyzed. The target can attempt to break free and reroll the save at the end of each turn. 

-Blessing of the Swift Embrace: Your walking speed is increased by 10 ft. You can also you use your bonus action to attempt to grapple a creature with your slithering lower half.

At 10th level, you can activate two blessings at once and at 14th level, all 3 blessings can be used simultaneously.

Snake Charmer

The hypnotic allure of the snake runs through you, aiding your diplomatic ventures. 

At 10th level, you gain proficiency in animal handling if you dont have it already. Once per short rest, you can activate a charming aura that grants you advantage on all Charisma checks for 10 minutes.

Furtive Fang

As a creature of the shadows, your hunting instincts have been honed to perfection. 

Starting at 14th level, serpentine camouflage has granted you expertise in stealth if you dont already have it. If you surprise a creature, you can attempt to use the Peaceful Fang feature and paralyze them without having to rage.    

Serpent's Kiss

Your veins have become venomous and your menace tangible. 

At 6th level, you gain resistance to poison damage. When raging, you are able to inflict a horrifying wound to an unsuspecting victim. On a hit, you deal an extra 3d6 psychic damage and force the creature to make a Wisdom saving throw (DC equal to 8 + your proficiency bonus + your Charisma modifier). On failure, the creature is frightened of you until the end of your next turn.

You may use this feature 3 times per long rest.