User blog comment:Jyggalag Daedric Prince of Order/New Monsters For Future Seasons?/@comment-3045936-20130618213213/@comment-3045936-20130620210637

I forgot to add that part. The sorceress would have cast a spell, binding the Caileach to her similar to like the one Lucifer cast on Death. As despite being a more powerful god like Kali, Atropos, Chronos, Zeus etc, it realisticly possible that a binding spell would work on her. This spell prevents her from killing the sorceress and gives her the sorceress limited control over her. So when not directly being controled by her, the Caileach would teleport to Sam and Dean and either try to kill them or in list their help.