Chaos magic. Is it necessary?

Thirdly, you can upgrade the ballista with enchanted arrows. And elves never have mana problems.

And how often do you upgrade it? With 2% on Machines for an Elf?
By the way, does everyone know that if the initiative of an Enchanted Ballista is higher than its nominal value, the hero will not attack again after its first volley until it is destroyed or until the mana runs out?

If that's the case, I only take Dirael and Talanar for Chaos because they are redheads... seriously, Talanar learns Fire Wrath, and Dirael learns Mana Burst. Everyone else prefers Light or Summoning. I would never take Dark Magic...

Um... And is it okay that Dirael already has Summoning at the start? Chaos + Summoning... And not taking any combat skills? And why this particular division: Talanar specifically with Fire Wrath, and Dirael specifically with Mana Burst? Can't it be the other way around?:D