With this mod you can change Hero Properties without edit original config from VCMI. I edited Xeron - Inferno Campaign Hero, he can now upgrade 1-6 level Inferno Creatures to Devils and Devils to Archdevils. His Secondary Skills changed from Leadership and Tactics to Offense and Logicstics
To install unpack rar and drag Edited Heroes folder to Mods.
Edited Heroes.rar (1.28 KB)
He is still limited by cost of upgrade, devils are expensive and mercury. It help you in early game.
In Dracon’s Campaign i didn’t upgrade Magi to Enchanters, becuase I save money to Titans which are better than them.