Just a couple, and they can’t get you over… 9 Iron Tokens, I think. There should be a storylet called "Knife-and-Candle: Minor players" allowing you to challenge them. They’re useful to get a little reserve of Iron Tokens quickly, though Iron Tokens are also sent to any player weekly. Anyway, that’s nothing more than an appetizer - main Knife and Candle action is PvP. But it is usually much more polite than usual online PvP, so fear not ^^