Attack!

You take a swing at yourself, only to find that you block your attack. You strike back, but once again you find yourself blocked. You continue to parry yourself for approximately the next half hour before you realize that you aren't getting anywhere. You also realize that you're not who you thought you were. As you look at you closer, you realize that you are only one eighth the size of who you were. So you are you, but you are a much smaller (and more economical) version of you, too. The sword and suit of armor are likewise reduced in size.

Unconfirmed