During a test game, I encountered a situation where an investigator with 2 luck was carrying the ceremonial skull. The Keeper had access to uncontrollable urges.
Using uncontrollable urges to activate the skull will result in the keeper gaining threat 80% of the time. These are fine odds. Once the keeper has done this, and gained his threat, couldn't he immediately spend the threat to make the player molest the skull a second time? A third? A hundredth? That player will get some skill tokens, but with unlimited threat tokens, you could use uncontrollable urges to move all of the investigators back into the same bathroom every turn until the end of the game, so that they can't make any progress whatsoever.
Perhaps I misread the card or something, but it really seems like uncontrollable urges might be better if it could only affect each investigator once per round.
