Onyxia is the broodmotherA) of the Black Dragonflight and mostly known to the world under her mortal guise of Katrana Prestor.B) She acted as the advisor to Anduin Wrynn when his dad went missing due to Katrana’s involvement.
She is the daughter of Deathwing and she is eventually killed by either Varian or the players. Her head is consequently chopped off and cheerfully displayed before the gates of Stormwind (something that apparently only I find disturbing).
PlatinumWoW claims that she’s considered one of the best villains of Warcraft and…yeah, I agree, though I think that she probably shouldn’t have been killed. Honestly, the Black Dragonflight shouldn’t have gone.
It helps that she’s hot. I-in her visage of course.