Experimental Cards have lead to lazy, effortless balancing

I agree. In general it’s not “powerful” that’s the issue. It’s “self reliant” that’s needed.

Tanks should be able to exist and participate in duels, without being useless unless they are pocketed by their teammates the entire match.

Generally, this is how I’d get there.
Experimental Mode – Hero Balance January 2021 - #5 by GreyFalcon-11737