Part of a series of works for my Final Year Illustration Project in 2011.
One of the dragons inside the [Hunt for the Dragon Kings] arc, the Night Drake is, like its namesake, the master of the night skies. Upon defeat, it will bestow the power of flight and earth.
The Night Drake is a manifestation of one of the last overlords of Valhalla, whose name was so old it's not even in the annals, but that he was generally a good king before his demise 367 years later. After his death, he takes the form of the winged drake that "is so huge, it can even reach the moon if it so chooses."
Like most overlords of the same draconic bloodline, their power comes from the golden orb at their throats. In order to defeat them, one just has to destroy the orb, and if one is capable enough, he or she could take the power released by the orb (which differs depending on what the overlord controls). In this case, the Night Drake's power is over earth and sky.