The dragon coughs up partially digested food and slimy bile in a 90-foot cone. Each creature in that area must make a DC 20 Constitution saving throw. On a failure, a creature takes 70 (20d6) poison damage and is coated in bile. On a success, a creature takes half the damage and isn't coated in bile. While coated in bile, a creature is poisoned. A creature, including the target coated in bile, can use its action to remove the bile, ending the poisoned condition.