Pound - treasure card costing $5
When you gain this put a Pound token on a supply pile other than the pound supply.
Cards in this pile cost 1 less (but not less than 0) and can only be bought when you played a pound this turn.
Very Broken Card. If I place a pound token on the Province pile then it forces all my opponents to buy Pounds as well cause otherwise they'd never be able to buy provinces. Forcing a card to be purchased to but a province really breaks the game.
Additionally If the province pile gets a lot of Pound tokens on it then they can be gained easily through other means like Workshop.