Alexstraza: Without its master, the black dragonflight will become an even greater threat! Control must be maintained...there must always be...[dramatic earthquake] a giant douche of a dragon!
Ysera: Such a burden, it must be mine! I need a unique model anyway!
Bolvar Fordragon: The dragons' flame... sealed my fate. The world of the non scaly can no longer comfort me. Place the chin upon my face, Alex. Forevermore - I will be the Lord of black dragons.
And then Bolvar was Deathwing.