I win if I use Steal five times successfully. I have done so four times. But I don't want to go to the specchat just yet, the game is still interesting.
As for how you can accommodate it, Steal fails if my target "is not changed or killed". But as mentioned above, I have no real reason to win just yet - I could've won a while ago, in fact I forgot to submit an action last Night (*embarrassed cough*), but it's just getting interesting.
But the REAL wincon is "make the world your oyster" :P