This is the Beithir (aka Bihir, Lightning Wyrm or Lightning serpent). It is steely gray with a silvery underside. Under its cobra-like hood along the side are vent like opening that glow with intense light as electricity charges in them. It can discharge powerful arcs of lightning from its body that instantly kills most anything smaller than a horse. It is about 50 feet long and very vicious. Although not known to have the temper of the fire wyrm it is more whimsical in its temperament. It almost never speaks, but will react to language and especially taunts.