As we all know, sb's caused much good forum drama and bet we can make some more if we try hard =)
Well, personally, I am bit tired of shouting in vicinity "Omni sb OPOPOPOPOPOPOPOPOP" and blame any loss inside the game on sb's. So here is my fair and constructive suggestion to give an alternative..
The sb repulsor ncu:
Ncu item that has pretty regular stats, 125+ncu at ql300 and complit reqs edit1* and 60sec equipttime.. There is two special things with this ncu, it prevents you to use your own shadow breed. And the second is you are unaffected by _any_ aoe effect created by any shadowbreed (friendly and hostile aoe effects). You will still shoot into blockers, feel the +crit etc everyone else may have due to sb use...
Presence of the master nano
This nano will purge any sb effect on any target in a 40m aoe range (including mobs).. no flags needed to land this nano.. Shade's and ma's can execute it and it has a 1hour cooldown...
and last... Omni sb is OP.. =P