Polymorph onto Snakes

Your Ophidian Heritage has Granted you a Unique ability, The Power to Transform others into Snakes

Once per Long Rest you may Target a Creature you can see w/in 60 ft of you. The Target Must Succeed on a Wisdom saving throw or Be transformed into a Tiny Poisonous Snake, as if affected by the polymorph spell. The Save DC is Equal to that of your innate Spellcasting ability