earth shield

Earth shields¹, also called hammer shields^{2, 3, 4, 5}, were jackhammer-like tools carried by Nuhvok. They could blow up rock and blast passages through the earth^{2, 5}, and they could tunnel through any surface.⁶ Nuhvok used them to dig tunnels underground and weaken structures from below, causing them to collapse.^{7, 8, 1, 9, 10} Each Nuhvok carried two earth shields, one on each arm. Earth shields were detachable weapons, but they needed to be connected to a Nuhvok supplying them with elemental energy to work.^{11, 12, 13}