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Perhaps the completers need an incentive to reset. Perhaps an item granting a permanent att/def/spy bonus. Complete once and get +5% on...
I have concluded my research on ally economics. Along with it I studied when you should buy/upgrade what type of building. I based my numbers on...
In the past week the price of allies has more than doubled. I used to pay 100x bonus. Now 200x bonus is rare and gets immediately rebought....