Oh well, I knew I wasn't going to win because Piface was immortal as long as I was alive. So I kind of just focused on random killings until there weren't many players left.
For the record, Ero, the Black witch or w/e the title was, hand picked the player to be the Black Knight. Cat had nothing to do with it, which made it so easy for me because no one thought for a second Welkin could be the Black Knight. Only downside is that Ero was screwed to losing by picking me, as mentioned above.