What would you change in Heroes of Might and Magic IV?

I would add new creatures: skeleton mage, ice dragon, yeti, werewolf, three-headed serpent, witch, scorpion, spider, angel of death, royal vampire, light rider (the counterpart to the champions of darkness), huge snakes (like a cobra, for example), dragonfly, demigod (for the Stronghold faction), skeleton archer, high monk, tank, machine gun, basic units, :) and gods from each faction with 2000 HP, magic specific to their faction (completely), and for the Barbarians, a demigod with 2200 HP would be enough.
I am very interested in your opinion.