Not nearly as bad as the fate I gave Rubii Naruto, which is more suited for him. But I don't think Hitler could control darkness, so I don't think getting powers ripped out of you, then put back, and ripped out for eternity would work. (That would actually hurt... a lot, because you have large amounts of energy going through your body, ripping through it, then having that power heal you, just so it can get ripped out.)