• Serpent's Reflexes. You have advantage on saving throws against being restrained.
• Venom Blood. You have Resistance against Poison Damage, and advantage on any Save agaisnt The Poisiond Condition.
• Venomous Bite. Your serpentine heritage gives you venomous fangs, granting you a natural bit attack dealing 1d4 Piercing damage and that are capable of injecting one of the following toxins upon a successful bite attack. When you hit a creature with a bite attack, you may choose one of the following effects:
• Neurotoxin: The target must make a Constitution saving throw (DC = 8 + your Constitution modifier + your proficiency bonus) or become paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.
• Hemotoxin: The target must make a Constitution saving throw or take an additional 2d6 poison damage at the start of each of its turns for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.
• Cytotoxin: The target must make a Constitution saving throw or suffer a -2 penalty to Strength and Dexterity for 1 hour. The target can make a saving throw at the end of each of its turns to end the effect early.

You can use this ability a number of times equal to your Proficiency Bonus between short or long Rests.