It doesn't just depend on time; it also determines whether you'll get a goblin or a druid.
Was there a large army on the boss? It should have been quite a challenge.
Regarding building Academy towns – no, that's not possible, so there's no point in taking any mines – everything is already built.
Regarding the bosses – I agree; I'll most likely reduce the respawn rate of phoenixes and fire elementals by 50% – once every two deaths.
The army was so-so – 10 allowed titans (the only way to increase their number, which I figured out, wasn't interesting), about 150 mages, about 300 gargoyles and golems, 50+ djinns, 40+ rakshasas. And then there were gremlins, which were almost immediately destroyed. There were just a lot of defenses (restoring the Defense perk on the second mentor was tiring): Mana Drain, Ice Shield, mage artifacts. So, the fire waves mainly destroyed the elementals.
I forgot to mention in the last message: Thank you very much for the beautiful and original map! Especially now: Heroes 6 is dead, KB is barely alive, and there's nothing to play:mad: