Karkethzerethzerus

Karkethzerethzerus the Sable Despoiler, also known as Karketh for short, is an ancient silver shadow dragon of Strathfell.

Biography
A long time ago, Karketh annihilated a nation of wood elves and centaurs using the energies of the Shadowfell, turning the region into a petrified woodland that he now, in 836 PD, rules with gleeful arrogance and baleful suspicion. Due to the etheric rifts that connect Strathfell and the Shadowfell, minions of the shadow dragon like darklings and meenlocks know how to find their way to travel between the Material Plane and the Plane of Shadow.

Some good-aligned centaurs (the descendants of the ones slayed by Karketh) still battle the Sable Despoiler and his evil forces, even if they are few in number.

Abilities
Karkethzerethzerus is immune to cold damage. Because of his nature as a shadow dragon, he is also resistant to necrotic damage, and has a shadow breath that cause necrotic damage and can rise undead shadows from the corpses of his slayed enemies.

Trivia

 * Karkethzerethzerus has some things in common with Saldarthoryn: both of them were silver dragons who caused great destruction.
 * While it is unclear what was the reason why Saldarthoryn's mind was "twisted", after being healed she recovered her reason. Karketh, however, is still a cruel shadow dragon.