User blog comment:UnofficialGameExpert78/Iroquois (Age of Empires II)/@comment-127769-20180912173815/@comment-26842175-20180914194054

If you are wondering what makes a civ good, it seems like eco bonusses are very important, especially those who grant more food/wood. The most resources that you actually spent are food/wood and this is especially true in the early game. If you have an eco bonus which starts to affect you in mid castle age, then that bonus will be far less important than the state of your economy. Cheaper TC is nice, but a good eco bonus should give you an eco boost earlier. I wondering on how this civ in 1v1s is going to be better than Incas.

Also: TC costing 50% less is less powerfull than saying TCs cost 100 less wood/stone (starting in castle age?), which might be a more intersting bonus(Though it might cause a trash-war problem). Also a bonus like ´can build a second TC in dark/feudal age´ might be interesting and I doubt if it would be better than Viking, Malay or Persian eco bonusses. However I think that your current idea might be somewhat underpowered.