A Tomb Sentinel is an enormous mass of living metal carapace teeming with flashing legs and possessed of a murderous will. Easily the size of a dozen men, this centipede-like robotic construct makes use of arcane phase-generators, allowing it to stalk the Tomb Worlds of its slumbering lords, burrowing through solid ground. Tomb Sentinels are swift and relentless engines of murder that know neither pity nor remorse. Differing somewhat in scale and form, Tomb Sentinels and other similar robotic constructs primarily serve by guarding their Necron masters’ during their sleep. They are eternally vigilant in their search for intruders that might disturb the dread tombs in which their masters slumber.