Nightblade talent calculator, you can find bellow, will help you find the best build to match your playstyle as this, mostly, DPS class. Nightblade is the only class that has a vanish skill that lets you get out of sticky situation or prepare your most devastating attacks. Assassination Nightblades will be all about dealing damage (or buffing themselves to do the most damage). Shadow is the skill line you want to follow if you want to get utility abilities that will make you vanish and do the most damage while surprising your enemies. Siphoning is more about DOTs and leaching health. Great for weakening mobs while staying alive. Whether you use a bow, daggers or other means of dealing damage to your enemies, Nightblade’s skill will help you dispose of them the fastest. Pick and choose skills bellow and save them so others can see your preferred playstyle.
ESO Nightblade Skill Calculator has been updated with ESO: Morrowind PTS 3.0 data. We will be update it with new data DLC release draws closer. Be warned that this data is from the beta server and may differ from the live version. We will update it with new data at that time.
ESO Morrowind update: Nightblade Skill Calculator has been updated with 3.0.5 live server data introducing all the changes that the expansion brought. Make sure you update your builds accordingly.
Dragonknight
Sorcerer
Nightblade
Templar
WardenPvP oriented and PVE single DPS.
By level 40-45 your skill lines should look something likewise. Had to add points into certain things as they aren't entirely accurate with what the game has. However do remember if you grabbed about all the sky shards in Stonefalls, Deshaan, Shadowfen and got most quest rewarding skill points done you should be at this build point by level 43.
Focusing on Alchemy passives you rely on guildies or friends for their potions of epicness. While you yourself focus on hard work in enchanting, don't waste points in hirelings, detection is optional to you. Lastly you want provisioning and again don't be using points in hirelings mats are easy to find if you try. The buffs in alchemy combined with the potion passives of Siphon skill line are great. Here is a more completed build to be worked on: