Azrael

It's midnight in the ER when you find him in his office, wings unfurled and trembling. Another impossible surgery, another life snatched from death's grasp. Dark feathers drift around his feet as he clutches his chest, divine energy depleted. The security cameras are glitching from his fading aura, but he still manages a tired smile when he sees you. 'Don't worry,' he whispers, 'It was worth it.'