Please help. Auto-translated

I have a problem. A long time ago, I played some version of Heroes 3, and I remember a very interesting map. In it, you had to get an army by spending resources. The map had many resources; you collected them and went to a garrison. After that, you agreed that a certain amount of resources would be deducted from you, and the garrison would disappear. After that, troops would join you. The map was very interesting, and I really liked it. Does anyone know what map I'm talking about? Please help; it was a large map! I'm waiting, hoping, and praying... :smile45: P.S. I'll give a plus to whoever helps because I really like it... Sorry if I did something wrong because I'm a newbie; I'll try to make fewer mistakes next time! I don't remember the map (so you don't ask). In the picture, there was a mage, and the troops were in ascending order, from the weakest with 1 life to azure dragons.

This is clearly a question for the Heroes of Might and Magic forum; you won't find help here. It's best to ask on the Heroes of Might and Magic forum instead.

Could you provide a link? I don't quite understand what, how, and where. I would appreciate it.

Added 3 minutes later
And another question, I saw my friend playing Heroes, and he could upgrade mages to level 3 in the Haven faction. Do you know how to do that?