Krasus... remember the name and quick thinks of some kinda dragon, but do not remember more :-/
Nozdormu is the Bronze-Dragonflights' aspect of time, right? Well, I have never been in the Caverns of Time in WoW, but guess it was through that place he allowed Rhonin, Broxigar and Krasus to get back in the time to join the "War of the Ancients" or...