Leyden Copperkleist[29.6, 40.4]
is a dwarf named mob associated with the Twilight's Hammer clan located at the Lightning Ledge in Mount Hyjal.


Leyden Copperkleist says: You're interrupting work your feeble mind cannot possibly comprehend!


  • Leyden is presumably the author of the nearby book, The Condensation of Electra-Atrocity.
  • He is named after the inventors of the Leyden jar, used to store electricity - Pieter van Musschenbroek of Leiden and Ewald Georg von Kleist - as well as a material that conducts electricity, copper.[1]

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