If you include Skweel Gnawtooth in your army, you must also include a unit of Giant Rats that he must join. After deploying Skweel into his unit, roll a D6 and consult the Exceptional Pack Chart to determine the pack's special attributes. The effects are for the entire pack but do not affect Skweel, Packmasters or Master Moulders. Skweel will never leave his special pack and may never join another unit.