BLITZ TOURNAMENT

Ah... now I understand where I went wrong; I didn't summon any demons. I didn't even think about this possibility, and as a result, the outcome wasn't as good.
I need to keep learning...:rolleyes:

You didn't need to come up with anything; you just needed to read the rules carefully. Amber recommended checking out the "PhysMiG" section – the basics of demonology. What do you think he meant by that?;)

Added 55 minutes later

Ugh, I feel like if I write now about how I got the blade, it will cause a stir.
Oh well:
I needed 7 heroes in total (although I bought one back twice), in addition to the starting hero and the hero in the dungeon. I bought Sylvia last, leveled her up on a golem with an oasis, then on the last of the four piles of gold, ran to the water, and got in the boat. The bonuses were off the charts. I sailed to the nearest ship and escaped. We buy ourselves again in the castle - so many movement points!:) (that is, navigation bonuses have become land-based, I know it's not correct, but it's not forbidden by the rules).

With this setup (given that Sylvia levels up as much as possible on 4 piles of gold and 1 golem), my "insane" Sylvia (I used an elixir, the blade, shackles, and leveled up her expert navigation, pathfinding, and water skills) collected everything on the map and successfully returned to exchange creatures for gold. I then earned 154177 gold, i.e., 7764 gold more (-3 heroes and +2 sprites, now I think that I could even reduce it to -4 heroes and push the golem)!!!! Note: assuming that Fure and Kal'h have completed their missions (see the walkthrough).
But for some reason, I immediately dismissed this option as incorrect. That's why I didn't save the game. Maybe I'm wrong.