The Hero's Path

I apologize; it was my mistake due to insufficient testing. It turned out that the standard function that places creatures on the map sets the quantity based on the difficulty level – fewer on Recruit than specified, and more on Hero. I store the set quantity in an internal variable, so when removing all creatures, I assume there shouldn't be any more, and I prevent interaction with them, even though the unit continues to stand on the map. Thank you for pointing this out; I will fix it when I get around to the next major update (perhaps within the next 2-3 weeks).

Regarding the arena, the balance issue is always that if the opponents are too strong, it will discourage weaker players, and if they are too weak, it will be boring for experienced heroes. If you have any ideas on how to elegantly please both groups, please let me know.