Elona is an unbalanced game in which unless you're lucky, your character will be crippled to nearly unplayability at some point, so -everything- you do is fair game then, it's simply adapting to survive.
Anyways, i'm trying to complete the "find that guy lost in floor 16 of Lesimas" quest (actually floor 17 according to the spoilers)
And after some hard but rather fair (suprising i must say for an Elona game) battles, i reached floor 15 or 16 (not sure where i can see which floor i'm on), and there is then a jump of difficulty really huge there.
Now on that floor i'm facing wisps that give ether disease you to death, various ents that mass fire/poison you and your troops in seconds, some strong metal knights that can slay you in a couple of turns , some mine laying dogthing that can one-shot-kill you if you get on one of their mines, and other super resistant and vastly damaging "blob things", some rock giants and big trolls. Even noticed a dragon (or something big and looking like a dragon) but didn't tried to fight that.
Wow it was so hard (my minions died in a few turns) that i guess i'll be back when i will have 10 more levels.