so, in the end, Agrail is still not a demon, and it seems like the griffin's heart would have worked (and I would have liked to see his face when he was Agrail :) )
someone else here asked about his spear, with which he killed Nicholas
most likely, it was charged with the power of Kha-Belekh himself, which is why even Archangels wouldn't have been able to help
and another question, who are the Faceless Ones (clearly not another creation of Urgash), can they be encountered somewhere, and how are the angels positioned in Ashan?