DOTA IDEAS A DOTA 2 INTERACTIVE FORUM

Instead of destroying the barracks to upgrade your creeps, you can freely upgrade your buildings including the towers, barracks, and maybe the base as well, as long as you can collect enough skulls from killing your enemies.

To be more specific, every time you kill an enemy it drops a collectible that you have to click to collect like an item. You can sell it for a little bit of gold, or you can use it to upgrade your buildings. You can upgrade one or all of your barracks so that it produces stronger creeps (like mega creeps), which could even have abilities at some point and auto cast them (like neutrals). You can also upgrade your towers so that they can have more damage and health, and maybe different abilities as well like healing, slowing, poisoning...etc (like custom map Castle Fight).

This way, you have more choice over what can be done to lanes, and thus more room for strategies. Also collecting a skull during a fight is risk-taking and can feel rewarding. I think it'd significantly change the game in a positive way.