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well, it just so happened that in all my 3 offline tournaments, the goal was to build an army and level up the hero to a certain point. In my very first tournament, this time limit was 245. In general, I was very surprised at the time how the winner managed to gather one and a half times more demons than I did, even though I had already gathered almost the maximum possible amount. He probably used the "Month of Monsters" event! It's like a revelation, the mystery of the past has been revealed! :)
Added 2 minutes ago
and I don't want to use the "Month of Monsters" event so that it doesn't give the impression that the map can only be completed thanks to this event.