Hi!

I'm assuming you are talking about PvE, this is IMHO the best setup you can run in group content.

The build i recommend is one of the following combinations:

Preffered:

5 NMG (armor) + 4/3 Hundings (armor pieces + weapons), All divines, Dual sharpened daggers (WD enchant and Poison Enchant), Precise bow (Disease enchant).

Others:

5 Hundings (armor) + 4/3 NMG (armor pieces + weapons), All divines, Dual sharpened daggers (WD enchant and Poison Enchant), Precise bow (Disease enchant).

5 TBS (armor) + 4/3 NMG (armor pieces + weapons), All divines, Dual sharpened daggers (WD enchant and Poison Enchant), Precise bow (Disease enchant).

You're always using Thief mundus if you are not khajith, shadow if you are, Both if using TBS.


NMG Outperforms HR and TBS in Solo content and in Group content if there is no people running it. You are focusing in High Crit chance and Crit DMG. you'll be using Power+crit+stamina pots

SKILLS

DW bar: Killers blade, Surprise attack/Rapid strikes, Rendering slashes, Vigor, Flex spot (Steel Tornado for AoE, Ambush for Maelstrom, Blade cloak For heavy AoE on you, Another Assasination skill For the extra %crit or another Fighter guild skill for the extra %WD), Ulti: FDB.

Bow bar: Poison Injection, Endless hail, Siphoning attacks/Caltrops, Relentless focus, Rearming Trap, Ulti: Shooting Star/Bostlering Darkness/Incap Strike.


My personal rotation is:

SpA=Siphoning attacks
EH=endless Hail
SA=Surprise attack
LA=light attack
PI= Poison injection
BC=blood craze
FDB=Flawless dawnbreaker
KB=killers blade
RF=Relentless Focus


Buff (Siphing Attacks+Reletness+pot)

Trap > Endless> LA+PI > Barswap > LA+BC > LA+FDB > LA+SA x4 > barswap > Trap > LA+PI > LA + RF > LA+SpA (if needed) > Barswap > ... and so on.

in Execute range, you do trap > Endless Hail > LA+PI > Incap strike > Barswap > spam LA+KB until endless ends > repeat.

Also @Gilliamtherogue has a very in-depth guide that you should look at:
https://forums.elderscrollsonline.com/en/discussion/243441/end-game-stamina-nightblade-build-pve-dps


Hope this helps.

Regards!

I like the hundings and the rest ashen grip. 5 pc impen with 3pc dodge/sprint reduction.

Many people choose night mother over ashen, but as a race without health I get my health from jewelry and ashen grip since I use drink not food.

Also, this is a pvp perspective.