The hero's difficulty is insurmountable. The veteran difficulty for the Demons is also too hard. I couldn't beat the final battle. I barely lost any troops (1 Nightmare, 3 Paladins, 4 Cerberuses). (I reached the final level at level 23, and it's possible to reach level 25 if you take the Education skill and get +1 level at level 24) against a level 26 Knight. He has all the cards. He's in the castle, so our ballista is useless. We don't have any artifacts, but he has artifacts that provide protection against magic and boost his stats, and of course, he has artifacts that reduce our luck and defense, while increasing his luck and defense (so our Demons have -2 luck and -3 defense, the Paladins have -5 luck and -3 defense, while the enemy has +2 luck and +3 defense). And without the Paladins, he can destroy us in just two shots. He has a fully upgraded catapult that deals 3 shots + 50 fire damage, which is enough to kill us despite the "Fight to the Last" perk. Fortunately, the enemy hero is constantly busy and casts single-target buffs from the Light magic school. As mentioned above, we don't have any magic (for example, I only have the "Leather" skill, as well as "Bless" and "Chaos," while the enemy has the "Light" perk that provides fire resistance + the "Reflection" perk + "Forgotten Armor"). The only thing that gave me hope of winning this battle was the "Summon Cave Lord" spell, which is why I spent 4 hours trying out different tactics to win. I was looking for a viable build (his 2 archers + ballista are just too much), and I found one (with "Fight to the Last," catapult, attack speed, "Leather" for defense, corpse eating for mana, and "Frost" from Chaos with "Sorcery" for faster casting), but I still couldn't implement it. The game is stuck in a loop, and it always gives me 16 attack, 3 defense, 6 knowledge, and 3 spell power, which isn't enough to summon a Phantom, and without it, the battle is already lost. Of course, I also tried perks that temporarily give mana or increase the mana pool, but it's still not enough. In general, I spent 4 hours on the final battle, used ArtMoney to cheat, and finished it just to get it over with. The idea is interesting.