In this conquest my alliance struggled to get enough resources to do research and build watchtowers. The amount of stone and wisdom needed was way too high.
I have seen that the amount of stone needed to build/upgrade towers can be very different for alliances and it seems to be the same with wisdom cost for research.
Some think that the levels of stronghold buildings determines the cost, the higher level builders quarters and stone depot brings up the amount of stone needed to build watchtowers.
Others say it is the tier you are in that determines how much stone you need to build/upgrade watchtowers.
So I am wondering, is it the tier or is it stronghold building levels that determine amount of stone/wisdom needed to build/research in conquest?