A unit of Skeleton Horsemen that includes the Doomrider Banner bearer automatically hits when charging into hand-to-hand combat. Only the Skeleton Horsemen and the standard bearer hit automatically, any characters with the unit must roll to hit as normal.
Undead only.
Note that although many Undead character models are allowed to ride Skeletal Steeds not all will fit satisfactorily on the skeletal frame. For this reason it is perfectly acceptable for the character to ride another horse model but counting as a skeletal steed - these 'undead horses' can be painted black with red eyes, or a ghostly pallid green to indicate their undead status.