This method only works in a single player game….
1) Save the game
2) We go into the city
3) We go to the tavern, and then – “Thieves Guild”
4) We pay money to find out information about the enemy
5) When you know everything you need, load the game
You did not lose money, but you received the necessary information about the enemy (how many resources he has, what is his strongest hero, etc.) Using this technique, you can always find out information about the enemy without losing money. Fast and easy!