Board Thread:Versus Debates/@comment-25122992-20151114124239/@comment-25122992-20151114173404

Izanagi is already the last resort jutsu cause Obito wouldn't sacrifice so recklessly his MS with Kamui (the only eye he can cast Izanagi with - it's unlikely Rinnegan can be used for this, and Obito has no additional Sharingans in the arm/head/shoulders/whatever remains, only the right eye).