"Escape to Salvation" - "Magnificent Retreat" [Campaign 4, Mission 4]

Whew, I finally finished this game!!! Although, the previous missions (especially the first one) drained so much of my energy that I enjoyed the last one, without racking my brain with tactical maneuvers. Specifically: Zephyr methodically explored the entire map, completing quests as much as possible and gaining experience, while the other heroes ascended to the surface without a fight and gathered at my castle. As a result, I stormed the Claw with 400 twilight witches, 50 black dragons, and 1000 assassins, 70 thunderbirds, 150 rakshasas, 100 upgraded cyclops, and 850 regular ones (all numbers are very approximate). Naturally, the battle with Biara's army with such a setup looked like beating up babies)))

P.S. Special thanks to users antonag07 and bonchik for the idea of how to complete the game and for saving my sanity;)))