yes, not just against the dark factions... I started playing on that difficulty from the beginning, and now it seems too easy on another one)
and regarding the topic, Necropolis also wins without losses) but everyone except the Dungeon has problems with the castle) well, except for Haven, it's a bit easier)
I only tried the leadership skill... it's very convenient!
!!!!!!!
Against Necromancer on hero difficulty, I recommend Kifrah (empathy, luck, education, chaos, and attack)! BUT!!! if the issue will be resolved in the first 2 weeks, she is not suitable! she is quite weak at the beginning. Then, Vaishan is quite effective in all parameters (luck, attack, magic, chaos, education)!