The ghost dragon is the upgrade of the bone dragon, the seventh-tier creature of the Necropolis faction in Heroes of Might and Magic III. It can be recruited from the Upgraded Dragon Vault. With increases to attack, defense, and hit points, and a large increase to speed, the ghost dragon is even more impressive than the bone dragon. The ghost dragon also has an aging attack, which has a 20% chance to halve the hit points of the targeted creature. It is also a lot more expensive than the bone dragon.