Kin to the World Serpent

as a yaun-ti pureblood you come from a direct lineage to that of the world serpent, giving you certain boons.

Once per day you can use your reaction to escape being restrained or grappled by an opposing force by shedding a layer of your skin and emerging from it. items being warn or carried emerge with you. once you use this feature you cannot do so again until you complete a long rest. 

You develop a potent venom, strong enough to hinder the strongest of enemies. you gain the attack option of a venomous bite. as an action on your turn you can attempt to bite a target, on a hit the target takes 1d4 piercing damage, the target will also have to make a CON saving throw (equal to 8 + Constitution modifier + Proficiency modifier) on a failed save the target takes an extra 4d8 poison damage and becomes paralysed for up to 1 minute, on a successful save the target takes no extra damage and resists the paralysis effect and becomes immune to it for 24hrs. Also if a target is reduced to 0 hit points it does not die but rather becomes unconscious for up to 1d4 hours. undead and constructs are immune to this feature.