Added 22 hours 35 minutes ago
But there are already difficulties with the smaller factions. Faction 6 has no heroes. There's 1 Castle, where it's definitely Elves, given the number of neutral Dwarves. I went down, beat up the Halflings, and took one in order for each hero. In the School, I'll spend on life for each (with a choice, perhaps a Chaos hero). The Military University let me down; the only useful thing is leadership for Lysander. The neutral Military School also let me down, without a fight.
After that, I'll have to find a way, because there are 3 garrisons.
A dozen Ice Demons will fall.
Phoenixes and Ifrits, with some difficulty, I think they will too.
But 3 heroes, a dozen Phoenixes, a pack of Ifrits, hundreds of Ice Demons, and hundreds of Spirits are already a serious challenge for such a limited city.
They won't just leave.
I checked the Conservatories and spells; in general, there's order around the Conservatory, and there's a guild guarded by monks with a portal, which means I can try to attack the garrison not only with heroes but also with the accumulated Elves.
But for now, there are difficulties even with breaking through, but - the city is taken, the nearest Elven town is also taken, another one below will be taken soon, and then I'll buy life, leadership, and prepare first to eliminate the Dwarves, then the Djinns for the University, and after that, the garrisons.
In general, the armies around the starting center are the weakest (even on Champion difficulty), they have the necessary artifacts - boots, snowshoes, staffs, starting spells, and Temples tuned for a specific type of magic, to assemble a squad of heroes from their specific skills and the magic of their class, plus a little bit of combat skills. In fact, as Cold said, even on Champion, it's more profitable than leveling up combat skills to 20 for everyone (and summoning with Elves for two out of three heroes is an invincible armada, stable, albeit very drawn out). Good luck finishing one of the longest, albeit not the most difficult (at this stage) scenarios.
This is already the second to last one; don't forget to enter the portal-additional location north of the 6 heroes at the very beginning - the AI will allow it, and there's also a limit there 