Universal Rule.
The unit can make March Moves as if it wasn’t Un- dead. At the Beginning of each of your Magic Phases after Siphoning the Veil, you can spend 1 Veil To- ken to raise D6+X Skeletons of this unit, where X is the number of the current Game Turn. This can raise Health Points above the unit’s starting size. If the Barrow King is not on the table, it is raised with 1 Health Point instead and is placed in the unit’s Front Rank (possibly replacing a Skeleton if there is not enough space for the model to move to the back rank).