[AOE3] The New ONE Resource Meta Is Upon Us 

What does it do?

@@hoola_amigos it gives armor against rockets to every units and buildings

No, heroes shadow tech, so they receive the bonus HP of the age up instantly, like healing

@@dimitrisoikonomou3568 I understand the ADDED health from age up but not the 35% health to 100% health AND he said he needed to bring back his hero to his TC for the heal. That age up at most should only give him 500 health as the age 3 gives 100% health extra health from his base stats from age 1 which is 500 health, so at most he should have around 850 health not full 1375. Im guessing it doesnt have to do with the TC but the lakota tent that gives 10% health and some kind of bug with the stacking of % as i know the tent gives health based on total health and not on the based stats of units like upgrades do.

Yes, by avoiding excessive use. It's like you (over) sell something and there is no demand, thus the price which you can sell it drops. The values reset slightly every minute if you don't use it. The advanced market gives better values and resets faster I believe. The best way is to do a little bit of everything (sell and buy wood and food) without "having a preference" (on selling food for example).

Use it with fur trade card. Sell a bunch of food for gold to reach age 3 then in age 3 gather a lot of food and use fur trade to turn it into coin. Now since you have sold a lot of food now food is super cheap and you just buy enough for to age to 4