As a system I think it has potential. As always, it will come down to how well it is implemented. I only have one suggestion. I think you need to signal unambiguously who your intended audience is. I can easily imagine a less experienced or strategic player being totally screwed by this. Such players often rely on a bit of leveling up to compensate. If they are not your target, that's fine - no game can be aimed at everyone. But it's best if such players are steered away before they waste their time.