if you want +5f per Eagle, why not give +5f per Knight or +5w on Crossbow? You can nerf any meta unit.
Mayans are overtuned, I would like nerfing them, but they are also fairly predictable, basically they have 2 units they can make. “Oh look he is doing Skirms, I wonder what the Mayans player will do!” You can see the Eagle switch come from a mile away, it’s either that or 3 TC boom, Mayans really don’t have much in terms of strategy variety. Late game you can see Plumed Archers, and their dreaded double gold comp of Eagles + Plumes (they need their longer lasting resources to get this comp btw), but if you let a Mayans mass El Dorado Eagles AND Plumes, you probably deserve to lose anyway.
I don’t 1 trick Aztecs, in fact I have no particular preference for any civ. If I had to pick a civ I like, I like gimmicky civs that revolve around weird units or UUs, such as Portuguese, Gurjaras, and so on. Malay and Burmese are some of my favorites and both are pretty bottom tier on basically any game mode. But I go random civ in RM like 85% of the time.
I do like Aztecs all-in as a design but you can’t argue that Aztecs are top tier. Their eco bonus after the nerf is very bland and I would say the Eagle all-in, the better micro player wins always. It never feels bad to lose to Aztecs like it does losing vs say Mayans Crossbow spam.
Monks are some of the hardest units to unse in the game.
And you should learn to read, I said that Aztecs have nothing AFTER their EARLY Castle age power spike (keyword “early” because even in late Castle, Aztecs suck quite a lot).
Eco bonus means that you can make the units you want with the extra resources.
If the discount applies to only 1 unit, or 1 production building, it’s not an eco bonus but a military bonus because say you are Berbers, if you wanna use your “eco bonus” of cheaper Knights and you go vs Pikeman, unless you tech switch it’s not a very good eco bonus when you run into Pikemen only.
Also you can invest your “eco bonus” into developing your eco further, generally, whereas that’s impossible with a military bonus.