Board Thread:Warhammer 40k General Discussion/@comment-86.159.94.118-20150805200234/@comment-3993996-20150806232453

That particular section does not list the source of which it came from. Looking over the last three Chaos Space Marines codexs it makes no mention of the mark making Abaddon immortal, only that it gives him the gift of each Choas god. I am more inclined to believe in the codex then what is written on a wiki anyone can edit.