Auto-translated
Everyone who has played the first Heroes game even a couple of times knows this simple fact. The same applies to the cave and so on. Everyone is on equal footing – dig what you think is necessary... I am for abolishing this rule. And the ability to buy the same hero multiple times in one turn is also a problem.
P.S. I think the rule (with the ban) should remain – as it is an unnecessary reason to engage in generating – which, in turn, does not reflect the player's skill, but only the amount of free time they have. At worst, create a separate tournament "to test such knowledge and details" – but not for all tournaments.