As some of you may or may not know. Garrosh Hellscream will be killable later on in the future. As to what causes him to become killable (storyline wise) remains to be known. He could have gone power crazy though its also unknown if he became corrupted by someone or something like the Old Gods. Also Elder Saurfang did warn Garrosh during the Wrath expansion that if he (garrosh) were ever to lead the horde down the same path as his father Grom Hellscream did before, he would kill Garrosh himself. Then you have Voljin warning Garrosh personally as well to watch his back. Wow lots and lots of ppl are hating him even more as time goes on.