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Gentlemen, I completely agree with everyone who says that a second hero is necessary. But, in my opinion, you misunderstood the Warrior (or he didn't express himself very clearly). For example, I understood him to mean that he is not against having a second hero, but simply starts with a level 1 town (i.e., without a tavern and without any dwellings). This means there is a choice of what to build first – a scout dwelling or a tavern. If you build a tavern and buy a second hero, you immediately double your army, but you can only upgrade the scouts on the 3rd day. If you build a dwelling, the upgrade happens on the 2nd day, which, depending on the nearby neutral creatures, may be even more important. So, in my opinion, the question is precisely what to build first, and not whether a second hero is needed. I, for example, usually build a tavern, but there have been a couple of times when it turned out to be more advantageous to upgrade the scouts as quickly as possible. Then the tavern, and consequently the second hero, appear only on the 3rd day, but, of course, still within the first week.