Skull of Elder Nikola
Skull of Elder Nikolas is a relic of the Adeptus Mechanicus. This skull once belonged to an ancient human who lived during the early days of mankind. Should the correct praise-psalm be sung to it, the skull will emit a halo of electric power that expands outwards, scrambling the circuits of enemy war machines.
It appears to be inspired by the real life scientist, Nikola Tesla.