User blog comment:Calvincambridge30/Versus/@comment-3481504-20151019134903/@comment-24834479-20151021042543

Death said that not even he is powerful enough to break souls, but a key made by Oberon is able to do so. A I before you say this, no, there is no difference between soul breaking and soul splitting. Death was clearly taking about ripping Sam's soul into multiple pieces (hacking the Hell part off), not destroying it. This shows that Oberon's power level rivals or exceeds Death's.