Promo Uruk II: Tribute

When it's your turn, you may ask one type of resource from the other players. Each player has to give you one of these resources if he has any. You put these resources on the card. You can move them to your supply on your next turn. You may only use this card once on your turn, alternating the function (taking resouces from the other players, taking the resources from the card to your supply).