"Do I really need to?" he asks in return. "It seems like all I'd have to do is wait."

The demons are many and even if they are killed in swathes, they are quickly replaced by more of their kind. It may be amusing for someone of their power to simply cut them down endlessly, a bloodbath that lasts as long as they like, but for the mortals? It's an oncoming tide that does not seem likely to be turned aside.

He picks bits of demon out from under his nails.

"And even if I wanted to kill them, you couldn't stop me."