As a vassal, he can be saved even if he dies. He just must not have lost control yet. This is why he didn't think about liberating his divine form for this battle.
The other warrior also didn't liberate her divine form. So the fight was to be between an angel that had liberated their form against two complete angels and one avatar of an angel.
The plan of the nobles was to make the knight and warrior hold back the angel of justice while the avatar of the angel of killing tries to deal the killing blow. But this plan might be difficult to execute because the angel of killing used her all of killing moves right from the start without any reserve.
The angel of killing transformed from a ghostly woman into a humanoid lamp. Her body didn't change much for this transformation. The main change to her was the appearance of a flame within her.
