I gathered all the hives that were on the map and reached level 123 by going through a pack of Titans and 88 Naga with 36 Monarchs. The treasure chest wasn't ideal; it gave water, then magic, but at least it gave a log. Later, I also got earth, shooting, and scouting. The water skill from the water book was very useful in later battles. Out of the 36 Monarchs that spawned, 2 Hydras and some other minor creatures appeared, followed by 28 Monarchs. I managed to reach the center before my opponent, which decided the game. In the end, my opponent started taking the upper part of the treasure chest closer to their spawn point, where they got some good loot, while I took the lower and center parts of the chest. I noticed some activity at the top and covered the entire area with a log. However, my opponent's treasure chest, which had better stats and contained 80 Monarchs, flies, 12 Efreet, and a couple of Hydras, compared to my 8 Dracols, a pack of Ducks, and 20 Scorpions + a Skorpius, looked unbeatable. I could have chosen to equip either +2 speed and all the books or the Cloak of Renunciation.
Notably, I managed to get 5 Ducks from the center, which gave me a lot of bags, the Admiral's Hat, 2 water books, and only All 3. All 4, All 6, and a few Knowledge of the Earth and Knowledge of the Void from the ground slightly cheered me up.

Thanks for the game!