12/09/2013 08:14 PMPosted by BeastModeI'm sure Malthael thinks that he is the only one able to keep the black soulstone safe sense he thinks nothing can stop death. Malthael wants to keep the soulstone safe untill he can figure out a way to destroy it. Malthael thinks that he is not corrupt and all he wants to do is destroy all the demons and anything even part demon so i dont think he would use tainted power sense he himself is still an angel and he thinks hes doing the right thing.
Because Diablo and his brothers were consumed by the black soul stone when they got close do it, perhaps Malthael could amplify the stones powers a millionfold and channel it across plains to rip out the souls of all evil and bind them to the stone. To do this Malthael needs souls of the nephalem, to amplify it.