Changes

As a [[Nephilim]], Jack possessed both a soul and [[archangel]] [[grace]] with the combination making him stronger than even [[Lucifer]]. After Jack's death, his soul got its own [[Heaven]] like any deceased human, but it was also sought after by the [[Cosmic Entity]] who believed that Jack's [[angel]] half meant that his soul belonged in [[the Empty]] instead. After making a deal with the entity, [[Castiel]] returned Jack's soul to his body briefly, and then Jack who completed an Enochian spell provided by [[Lily Sunder]] that used part of his soul to sustain his body and cure him. In the process, this piece of Jack's soul was burned away, but Lily believed that it wouldn't be anything that he would miss.<ref name="fourteen08" /> Later, during an attack by [[Michael's Monsters]], Jack was able to use the magic keeping him alive to tap into the power of his soul and disintegrate five attacking monsters in a similar manner to what he could do while Jack still had his grace. Due to the nature of the magic, another piece of Jack's soul was burned away doing this leading to Castiel warning Jack of the consequences of the continued use of his soul in this way.<ref name="fourteen10">[[14.10 Nihilism]]</ref> Although he continues to use his soul primarily to stay alive, having to use it to heal himself of a reoccurrence of his illness at least once, Jack uses his powers to heal Castiel after he gets envenomated by the [[Gorgon]] [[Noah Ophis]] and the antidote fails to work. After [[Michael (Apocalypse World)|Michael]] escapes Dean's mind and possesses Rowena, Jack uses his powers to [[exorcism|exorcise]] the archangel from Rowena and destroy him, leaving only his grace. When Jack consumes Michael's grace, his powers are restored, eliminating the need for him to use his soul to access his powers. However, it is unknown how much <ref name="fourteen14">[[14.14 Ouroboros]]</ref> Its later revealed that Jack burned away a great deal of his soul was burned away in the process, leaving him mostly, if not completely, [[soulless]]. However, Castiel expresses a belief that Jack still has some of his soul left, but he doesn't know how much.<ref name="fourteen14fourteen15">[[14.14 Ouroboros15 Peace of Mind]]</ref>