Currently Fertile Lands grants 500 acres to the user for 30 days in the selected port. What if the user does not want 500 acres total?
I would like to propose a re-work to the cards effect..
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Fertile Lands
Turns Required - 3(x)
Choose Port
Your plantation receives 100 acres at target port + 50 acres times the number of extra turns invested (x), for 30 days.
Max per card is 500 acres.
Does not count towards port maximum acres.
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This would allow more control over the type of plantation one wishes to have in the given port. For 11 turns you get the max of 500 acres per card.

, i just went for more turns to get less acres but longer duration. If you want more turns to give more acres and less duration thats fine by me. What im really after is the ability to reduce the amount of acres it gives to allow more flexibility in the setup one would prefer to achieve.