The hound has Advantage on an attack roll against a creature if at least one of the hound’s allies is within 5 feet of the creature and the ally doesn’t have the Incapacitated condition.
The hound makes two Bite attacks.
plus 3 (1d6) Fire damage.
Dexterity Saving Throw: DC 12, each creature in a 15-foot Cone. Failure: 17 (5d6) Fire damage. Success: Half damage.