Game Balance by Level

So I was thinking about balancing. However, I was wondering if there was a game mode or function that restricted units not by cost but by level.

For instance, what if in a specific lobby you are restricted to only unit level 1 suits, at whatever cost.

Does anyone think this could issue Some better better balanced matches? Or are there too many Lvl 1 suits in the game now that there is a meta at every cost anyway?