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2 Fireball. For the Warlock, we take spellcasting and arcane knowledge + volatile mana; from Chaos, we get +2 knowledge and +1 from the castle... and something will drop at levels, so there will be enough mana (you can also take learning and intelligence +50% mana)... boots give +50% damage, enhanced spell, and arcane luck, i.e., the base damage is increased by 0.5 (boots), then 1.5 from the base plus another 0.5 (arcane), and in the end, 2.25 from the base is doubled (arcane luck)... and in the first week of the second month, I saw 4000 something in the battle log against Weishan...
Then, unlike evasion, heraldry cannot be applied en masse.
And regarding all of the above... I didn't say that it would happen immediately for one hero; there are just different ways, and each race chooses its own.
And right now, a very interesting Chinese development option has appeared for mages. It is based on quickly building a guild of mages, then choosing magic skills, depending on the spells already available, and early attacks... the troops form a meat shield, and the mage decides everything with high-level spells. And this rather unexpected approach is currently quite successful.