Gave up the castle and color for 6000. We played on luck. Tyrax came, leveled up Log and Earth. Played through him. Broke through to the Conflux zone, then there was a choice - either go to the treasure or rush the opponent. Decided to rush. Took his main, broke through to another zone. Then I realized that chasing the mage would eventually lose me the game, so I returned home and started clearing the hives. Got into a conflux 2-4, which turned out to be a 4. But Tyrax under Shield and Stone Skin lost only 1 each of Archangels and Efreets. Then I ran to the treasure, and from a small piece of it I pulled +3 All and a Cape. Then the opponent ran there, so I got wiped because I was out of mana, and he apparently had 71. I still had 2 heroes with Earth, so using them as a chain I collected artifacts in the treasure, and with Tyrax I broke through the Guardian and took the opponent's main, which he didn't expect. Then again with Tyrax I ran around and captured castles (Tyrax was 3900), and with the low-level heroes I collected treasure on the snow. The opponent couldn't stand the constantly growing stats and surrendered.
Thanks for the game!