Through the Cracks They Creep: Whether outflanking the foe via the use of cunning trap-holes or emerging from the tunnels bored through reality by their allied Skitterstrands, Deff Grotz Spider Riders are adept at striking from unexpected directions.
At the start of the first battle round, after determining who has the first turn but before the first turn begins, you can pick up to D3 units from this battalion and remove them from the battlefield. If you do so, at the end of your first
movement phase, set up those units again wholly within 6" of the edge of the battlefield and more than 9" from any enemy units.