What is a hero's experience do on evony?

Answer 1

Here is a breakdown of what all the hero's statistics mean:
-politics= faster building times (fortifications too), more production (farms, iron mines, saw mills, rock quarries)
-attack= obviously the higher the attack the more chances one has of winning battles but it also decreases troop training times
-intelligence= faster research times, increased scouting intelligence

The level of a hero indicates how much a hero costs to employ and how quickly the hero can level up. For instance, a low level hero (regardless of stats) is easier to level up because there are less experience points needed to do so. Ideally, you want to recruit a low level hero with the highest stats.