Speed burst: By lowering their body to the ground and propelling themselves with their arms, Naga can move more quickly for a time. As a bonus action on their turn, if they have both hands free, they can increase their walking speed by 5 feet until the end of their turn.

Natural weapon: Naga's fanged maw is a natural weapon, which they can use to make unarmed strikes. If they hit with their bite, they deal piercing damage equal to 1d4 + Strength modifier, and their target must make a Constitution saving throw (DC 8 + proficiency bonus + Constitution modifier). On a failed save, the target takes 1d4 poison damage.

Poison immunity: Naga are immune to poison damage and can’t be poisoned.

Poison affinity: Naga gain proficiency with the poisoner’s kit.

Poison spit: As an action, Spitfangs can spray venom in a 15-foot line. Creatures in the line must succeed on a Dexterity saving throw (DC = 8 + Proficiency + Constitution) or take 2d4 poison damage and be blinded until the end of their next turn. Usable once per long rest.

Flared display: Spitfangs gain proficiency in Intimidation. If they already have it, gain Deception instead.

Corrosive spray: Spitting Vipers can spray venom from a distance. As an action, they can spit venom at a target within 10 feet. The target must make a Dexterity saving throw (DC = 8 + proficiency bonus + Constitution modifier) or take 2d6 acid damage and be blinded until the end of their next turn. On a successful save, they take half damage and are not blinded. Spitting Vipers can use this ability a number of times equal to their Constitution modifier per long rest (minimum 1). Spitting Vipers have resistance to acid damage.