Without mercury, everything is "alright."
Would you mind uploading a save file with the money-maker to this thread?
You also need to consider the terrain here.
Try giving the money-maker 1 GOBLIN, and everything will be fine, plus you'll have moves left:)
P.S. Dessa has 1 goblin.
Some participants in the tournament were talking about this "trick."
The heroes move differently, and it depends on who is in their army!!!
Sincerely, VDV_forever