why not the other way around?
I usually play eletd with irl friends at LAN, so instead of hating on strangers, It would be nice if we are able to "save" the allies that are dying early in the game.
Maybe the ability to upgrade your allies towers or build towers at their place, or some kind of battlecruiser that can fly to any failing ally to help them out.
Or maybe the option to give an ally a higher interest rate.
btw, I love the idea of different types of builders @ proveisso ↑