lol,
@Alram!!!
It is not this day!!
I am guessing the scaling for Enars goes sideways some where after chapter 15. It is like Inno decided not to reduce scouting costs for several chapters and forgot that there was a wonder that was going to be harmed by that choice. . . Or they did not care because Enars is effectively mana on demand, a few Boosters and it is back to producing more per square per hour than any event building.
I would disagree here. The Abbey is mana on demand. Especially for players later in the game who play the tourney weekly, even if not overly active, spells are easy to come by.
Enar however depends on the scouting time and that can go up pretty fast. A few boosters? Why would I want to waste 60+ hours on timeinstants on Enar for a relatively low amount of mana? There are much better things to spend the timeinstants on, and spells are much cheaper, so the DA would be a far better choice.
@Alram
Thanks for the example!
From your example I'd say Enar is good/ok in the middle chapters, but rapidly loses value after that as scouting times go up, then regains a bit IF one invests heavily in the Scout's Tavern once you get there.
So let me break it down for what I see in the app as I don't have the Embassy up.
If I would put the scouting time at 3 days, Enar lvl 35 would generate 351 K mana =351.000 / 3 / 24 /28= 174.11 mana / square / hour
Burning Pool chap 21 provides 2.666 mana/hour, at 12 squares = 222.17 mana / square / hour
Mana Hut chap 20 = 833 / hour, at 4 squares makes 208.25 mana /square / hour, and at chap 21 even 1.041 per hour, or 260.25 mane / square / hour
Even the Maze, at 765 provinces at lvl 33 provides 16.830 per harvest, so at 4 harvests / day that would be (16.830 x 4) / 24 / 30=93.5, but at 5 harvests it would be 116.87 / square / hour, but with a benefit that the decay is brought down to 2% which can save a crapload of mana each day.