Float like a butterfly, sting like a ... cat?

My white cat, Lucky, is very territorial, and he has been having these regular sparring matches with another cat who dared set paw on one of Lucky's 30 acres. The offending cat is black, and he and Lucky look like a pair of fighting cartoon cats, rolling all over the place, white fur flying everywhere.

So Lucky showed up yesterday morning looking like this:

Bless his heart, he's a mess. He has a scratched-up eye, bite marks all over the place, and his supposed-to-be-white fur looks like the hair of an old man with bad hygiene. I don't know what we're going to do with him. It's a little ironic that his name is Lucky, isn't it?