Aziraphale is also not going to ask what that is, but it seems to have armor and a cape, and also a very impractical helmet where he's honestly not sure how it's fitting into this tunnel, but he's not about to ask questions. He just assumes it's going to be friendly because it appears to be an enemy of whatever just ripped out his wing.

Taking a stuttered, still-shocked moment, he closes up the gaping wound that was once his wing, being unable to heal it properly but at least he's not losing any more blood. "Don't do that either!" he tries, panicked. Since there is enough noise down here that it really wouldn't matter if they were trying to hide anymore, he snaps his fingers from above, as he commands: "Let there be light!"

[ OoC: I'm not sure if that works in the dream... ]