My problem with the Nightsisters

What i would like to see added to nightsisters, is for one of them to give the whole team a buff, only initiate does that but it does not last long (enough) and it has a fairly long cooldown in my opinion. The reason i would like to see that change, is because the nightsisters (even without the new nightsisters) could be good to use in phase 3 HAAT, but the team dies quickly, either because initiate's buff goes away before the canon gets it's turn, or initiate's ability is still on cooldown. (It does not matter how fast or slow initiate is).

With that old daka gets targeted right away, so no means to revive the other nightsisters. (I know use talzin zeta leader or group assist attack to to that, by targeting a b1 droid killing it and reviving fallen nightsisters, but it will be a year or more before anyone has talzin to 7 stars).