imagene you're a big strong blue dragon but you're stupid and arrogant so you attack the most powerful being on the planet who's more powerful than the aspects

and then you not only get burned alive and die in the most horrifically imaginable way possible but you're forced to relive this for eternity because you died in a special magical location on Azeroth that's permanently fixed to the Twisting Nether, so you become like a demon that can't die, forever resurrected to burn from within before being killed again - eternally