Ash Wastes Arachni-RigAsh Wastes Arachni rigs known to House Van Saar as Arachnika Ash jumpers are armoured exoskeletons designed to traverse Necromundas rugged surface. Jump jets allow them to boost over obstacles, leap free of trouble, or unexpectedly drop in amongst their foes. Heavy weapons and surprising mobility make Ash jumpers a match for rival vehicles and Nomad war parties, as they carve through Cargo 8 trains with laser and plasma blasts, clear rough terrain