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Dyrman, I've reviewed all the Remix streams related to your mod:
https://www.youtube.com/watch?v=ktoCRWre37M
https://www.youtube.com/watch?v=qegr56mySfA
https://www.youtube.com/watch?v=d9zSt12wTIU
https://www.youtube.com/watch?v=KA_eesVXc-M
https://www.youtube.com/watch?v=ub2p0jzeHwQ
https://www.youtube.com/watch?v=-mCuUFfVJ8Y
For now, I've only commented on the Dwarves, but in general, the situation is similar for other factions, namely:
some heroes are too overpowered, and it might be worth slightly weakening them to achieve balance.
In any case, the final decision is yours; I'm just sharing my opinion.
However, you have to agree that it's unpleasant when, in a game, your opponent gets a stronger hero than you.
After all, balance implies a fair distribution of power and fair play (I'll just politely remain silent about Khabeleth).
Added 1 minute ago
But I'll add that, regardless, your mod is very interesting and useful, and even if you completely ignore all our suggestions, we will still play it