If you believe that having multiple Malevolent Necros with Corpseburster is problematic and cannot go into the game then you should 1000% look into the current Pulseganking meta that has been supercharged with Signet.

Outnumbered instakills with zero opportunity for counterplay because the entire damage gimmick is status effects being spammed from 35+ meters range.

What is good for the goose is good for the gander, after all. Please look into reigning that in because, for as bad as it is now, it will get much worse in the next patch.

It isn't terribly shocking that grim focus is a bit of a mess for balance, it is extremely high burst, and a bit of a pubstomper skill. Shifting some of the damage around so its less pure burst could do a lot to make it less punishing, esp. now that we can all bank two shots to delete someone with.

I'd go for something like 70% direct damage 30% 4 second dot instead of 100% direct like we have now, but a bonus damage proc on light/heavy attacks could work too, since the nb has to weave to generate stacks to spend on the bow shot; if slotting merciless made your light attacks trigger an extra X damage proc and your fully charged heavy attacks an extra 2X proc, you could lower the burst of the final arrow by 5X, with the nb would gaining slightly higher sustained damage but not dramatically changed overall dps.

Corpsebuster's damage doesnt even reach force shock in pvp so I doubt you can find ''groups of pure class necromancers'' going around spending a GCD on this set. Not to mention this passive occurs every 2 seconds and in a big fight its not even going to be on the same enemy

Builds having extreme damage, sustain, and survivability has always been an issue in ESO. Since when has anything been done about that?