"HW rulez" mod (add-on) for HoMM3.

Dude, I already told you, instead of making your absurd suggestions, you should learn how to play and not just use M templates. Maybe watch some streams... Your ideas are fundamentally absurd, and the prices are also absurd: it's easy to acquire that much gold and resources in the second week without losing out on upgrades and building improvements, if, of course, you're not just fighting with your dad.

I suggest reconsidering the pricing and making a separate building for each control spell.

Maybe watch some streams.