Sharkhal, the dragon from the north, Guardian of the fortress of Gods.

"From the huge pile of ash it rose, the light grey scaled dragon, it had strange looking runes around its body that reflected light when ray of sunlight hit to them. For while ago it was blue water dragon.. But after flight to the temple something happened. The lightning bolt stroke and set the dragon aflame. After that it was just a pile of ash.... And then... From the ashes of the burned dragon rose a new one. It was the same dragon that lightning had hit...but something changed in that dragon....It reborn by the will of the northern gods!"