Kehmevendial is the name of an alloy dragon who routinely purged his memories once every fifty years, keeping only the memories of his name, his cause, and his fighting strength. This dragon, by the end of its life, was the size of a mountain standing no less than a mile tall, and for the last several thousand years of its life, had no formal territory or living descendants, staying alive only to destroy and kill. He typically stayed in a bipedal form, with a sprinting speed of mach ten, wielding a blade a mile long and donning armor dozens of feet thick which could nullify any blow.
Known in his lifetime as a living natural disaster, Kehmevendial never slept and wandered the vast Feyndraigish countryside in search of villages and younger dragons to destroy. It took a coalition led by the incarnates of three tribes to take this dragon down. Kehmevendial is singlehandedly responsible for killing 60% of the entire population of Feyndraig, including six mind dragons. It took the nation a million years to fully recover, although since that time, there have been only five mind dragons left alive.
His rage was awakened when his lover, a dragon whose name is unknown to history, was slain by an unknown younger dragon who sought to expand their territory. Kehmevendial in that moment determined that it was his holy cause to exterminate all dragons from the face of the planet, and then to fling himself into the sun and leave the planet in the hands of the sapes.