-10k starting: 9100 for the castle and 900 for the color.
On the first day, I got a 4-hero lead on the knights + a stable. On the second day, I bought 8 heroes, saw a couple of imps (200 and 300). I played as Necropolis, farmed gold, and built a guild hall. On the fourth day, I took the swamp and placed ducks. I found 4 hives with 3 ducks each + upgrade = 122 experience through 3 crystal mines with 250+ skeletons and 33 ducks. I spent a couple of days in the center: a chest with 20 medusas, sandals +2 all, a bible, and a hive +8. On day 125, I took a chest for 13 silvers with all magic, but my opponent surrendered. He had a double Grand Order with devils and fairies.
Thanks for the game!