Before any units are deployed, Wulfrik the Wanderer and a single unit of Chaos Marauders may choose to use Seafang to encircle their foes. If they choose to do this, they have Ambushers. When rolling to see if Wulfrik and the Chaos Marauders arrive, roll once for both Wulfrik and the unit. When they arrive, the unit must be deployed with Wulfrik joined to it.