So i hate the point the obvious again. but the whole point of nemesis nanos is to completely f over the profession it's suppose to land on. Why do we need this ingame? Just remove them, since it makes the game way more rock paper scissors than anyhthing else.
If you want to balance a game with these nanos just because the past GD highly advertised these crappy ideas as an great addition to pvp (aka a major selling point in LE), the odds are slim to none.
Look at the shade's nemesis nano on keepers? How do u plan on balancing that ever? case and point.