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If I didn't know what it was, I would say IronAxe - go for it. But the harsh truth is that after 40-50 heroes in the tavern, you start seeing the annoying faces of heroes you've already recruited, plus you lose focus, and something seems to be happening from below... And you also need to keep a "log of hero recruitment," so to speak, for the sake of order. Moreover, some heroes simply don't want to appear, even though they are not used anywhere.
I understand that you are relying on personal experience, but we, too, are not "amateurs" - 3.5-4 hours, no less. I doubt anyone would want to repeat such feats, but as they say, the end justifies the means.
So, I am more inclined to agree with Dmitry AC than with vbn, with equal respect for both ;) By the way, using HexEdit, I found out who is in the tavern of the computer :) Now I know the ID in hexadecimal code of all the heroes in the third game :) I told you it was possible - after all, the hero recruiter program works for many people :)