On level 111, I captured the dungeon where Ivor was held, giving me 22 archers. It wasn't difficult to reach the village, where I got a free Pandora's Box for 10,000 experience points, using 10-19 birds. The leveling process was excellent, so I was able to upgrade to Earth with advanced armor and basic air magic.
I had two horse stashes. On levels 116-117, I gathered three of my own horsemen and had 10 angels. With 300 mana and a 400-damage bolt, I defeated three crystal golems without any losses.
I gathered my forces and attacked the opponent.
The opponent surrendered; they didn't assemble their defense properly and came out too late.
Thank you for the game.