yasnikov
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Thirdly, if you manage to obtain a mana reserve exceeding 10 times your current Knowledge skill (without considering Intelligence) through some means (wearing a helmet, visiting a well, removing the helmet), nothing happens to it until you spend it.
Secondly, the maximum mana depends on your current Knowledge skill and is equal to 10 times the Knowledge skill after visiting a well or spending the night in a city with a guild, or 20 times the Knowledge skill after visiting a magic source. Any decrease in Knowledge will result in a decrease in the mana reserve! Even if you simply move a scroll from one cell of the hero's backpack to another, your mana will be reduced to the level of Knowledge without this artifact.
By the way, I noticed this too (I don't remember if it was in the school?).
From my (rather inexperienced (or rather, experienced, but not outstanding)) point of view, I will try to talk about the usefulness of units. In my opinion, for the off-game, the speed of creatures is important. So, in the 2nd game, the fastest creatures (champion and phoenix) are not the most expensive. Therefore, I think that the phoenix should be placed in 3rd - 4th place (after the Black Dragon and Titans (we give the first place to the Djinn)), and the Champions in 4th - 7th place. Such a range is because it depends on what the tournament is for. If it's for speed, then Champions may be more useful than the Black Dragons. But if it's for experience, then the Black Dragons are probably more useful. But again, when playing for experience, I would put Vampire Lords (in large numbers) in second place (or maybe even first), because with a sufficient number, they defeat everyone.
Sorry for the somewhat chaotic post, it's just that today is the eve of the holiday, and Women's Day is sacred.