[Baalz]

Well, seems to me that if the consensus is that the real problem with clamming is related to scaling then the solution should also be scalable - otherwise you're just adjusting the window of efficiency (if you adjust the cost for example). Something like each clam being more expensive than the one before it would work, but would probably be difficult with the game engine since nothing else is done that way. An expensive anti clam spell would work to, combined with the gems showing in the score graph (though having it dispellable seems a poor way to make it a counter to overwhelming clams). It might be interesting (if not terribly thematic) if clams had a chance to horror mark each person in the province - spread out too much and they become more vulnerable like blood hunters, concentrate them too much and your rate of return gets shot to hell as horrors keep eating them.