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People, help me... I've already read all your advice, but nothing helps... I've been trying to complete this mission for half a year, if not more... I've even tried playing on easy mode, but nothing works...
1. I didn't rush and explored every corner with the main hero, clearing everything out completely.
2. I took all chests for experience, played all battles manually, and didn't allow any losses.
3. You need to learn tactics to position your units correctly.
4. I upgraded Tears, if that makes a difference.
5. I completed all the quests.
6. When I arrived at the last guy, my army was strong, and I defeated him with an auto-battle.
7. I had the Dynasty weapon - the Veilvoss Hammer, or whatever it's called, the one from Paokai's jaws, which gives +600.
8. The magic was standard - Reinforcement, Pushback, and I cast Guardian Angel either on the Vestal or on the units that attacked first - to remove retaliation, and then finish off the unit with removed retaliation with everyone together.
9. I didn't use Drain, and I don't think I used Healing either, although it would be wise to have all healing spells. (Restoration, Healing + variants with general healing)
10. Of course, I had the Resurrection Altar, but I didn't use it much either.
12. I also learned the catapult's abilities. I didn't learn any magic at all (except for Restoration), I only upgraded the Strength tab.
Added 1 minute ago
P.S.
It's just like in a classic joke.
An exam question in literature at the state exam in the philological institute:
What was mixed up in the Griffins' house?
a) Everything.
b) Nothing.
: )