Alberich was a dwarven king who had his castle below the ground, carved out of the rock itself. Get of Fenris with this Gift could well have been amongst the builders of that palace, for their claws can slice directly through stone, steel or any other inanimate material as if it were butter. It is taught by a mole spirit or earth elemental.
The player spends one point of Rage. If the Fenrir's next attack is performed with natural weaponry and strikes an inanimate object, it ausomatically does an extra ten levels of damage.