[Asakura's waiting for Thanatos to do his worst, and he honestly seems surprised--perhaps even disappointed--when the worst doesn't happen. He's still not in the greatest of shape. He's more angry he can't do anything significant in return than anything else.]

I'll stop...for now.

[And he's trying to sound badass as he says that but let's face it, the gasping as he tries to get his wind back and petulant glaring isn't exactly helping that image.]