Sunlit Sails

These sails are a white so pure as to dazzle the eye. As an action while touching the ship’s mast, choose one ship that you can see within 1 mile. The ship’s master gunner (or captain, if there is no master gunner) rolls a Constitution saving throw. On a failed saving throw, creatures on that ship that can see the sunlit sails are blinded until the beginning of your next turn. The sails work once, and can’t be used again this way until the next dawn.