Hi
Have a look at this thread:
Interesting map settings for, well, interesting map settings. Anything works, but I'd suggest you start with small maps until you really get the hang of the game. Just a bunch of one on ones at first maybe to get a feel for the civs. Note that each civ plays really differently, and the Amurites in the full game do play a little differently from the Amurites in the scenario. You have to build adepts and upgrade them to mages/summoners and build mana improvements on mana nodes. You'll get the idea, it's not too difficult.
Unfortunately the AI isn't very good at using magic right now. Kael explained to us that it wouldn't make much sense to try and make the AI very smart now already when the game is still quite unfinished. We're only in the second of four scheduled phases (Light, Fire, Shadow, Ice) so a lot of things are bound to change until FfH 2 is "done".
There's a modmod (a mod of the mod... you get the idea ;P) going on that tries to improve the AI now already because we're impatient bastards. Find the "Smarter Orcs" thread for more info. Note that this modmod is still quite a bit away from tackling mage AI; I believe there was a proof of concept with a dedicated fireball AI once, but as far as I know that's not in our codebase yet.
So the short answer is that, no, the AI does not use magic meaningfully. They do cast some stuff some of the time, but they don't "understand" how to use it efficiently. In my first xml experiments for Smarter Orcs I found out that the competitive performance of the AI is boosted significantly by simply discouraging it from researching down the magic branch of the tech tree.
Concerning difficulty, a good rule of thumb is "one or two steps higher than you're used to from Vanilla". I'm not sure how difficult Age of Ice is; I played a little bit on Prince and it was very easy, but then I've been playing FfH for a long time now
If you want to get into the game, there's a thread for multiplayer games (and those guys are always very friendly about teaching new players) in the forums; otherwise, if you'd prefer German native speakers, me and a friend from Hessen are running are semi-regular session (mostly Monday nights from 8 to midnight). We could even taunt you in German!
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