This is a build I made with some help from other sources who are a hell of a lot better at this than me.
The idea of this build, is to be a cool niche build for PVE tanking. Everyone is too busy fapping over Dragon knight Tanks at the moment to notice that other classes can actually tank very well. Nightblade Sap tanks are good, and Sorc Tanks are not too bad either.
This build involves being incredibly mobile through streak and boundless storm, while still fulfilling the classic tank roles of being tanky, providing utility and being a general annoyance to the enemy. (The only problem with this being that NPCs don't get annoyed, they just die, so....)

The end game gear I have decided on is:
2 x Lord Warden
5 x Alkatosh
5 x Ebon Armoury

If you are more a beginner, you can swap out the Alkatosh with Akavari Dragonguard, and if needed you can run Bloodspawn instead of Lord Wardens since vet ICP is a pain to do.
If you have Sturdy Traits on your armour, I would highly recommend not investing points into shadow ward, the reduced block cost CP perk. This is due to some block cost calculator maths, which mean that you end up with diminished returns.
TL;DR, Don't Use Sturdy traits with Sturdy CP perks.

I would recommend running as a vamp for the regen, and the undeath passive, but if you seem to be struggling with fire damage, drop it. The extra regen can't help you if you are dead.

As is pretty much standard on a Tank, run Tri Stat food, especially since this build uses lots of stamina and magicka. If you can too, Immovable potions would also be good, as they will give you resources back, and you can't get CCed, meaning no pesky boss can stop you reviving your DDs and/ or Healer if you nearly get wiped.
(Immovable potions require: Bugloss, Columbine and Namiras rot)
TL ;DR Use Tri-stat food and Immovable potions

If you don't like this build, then don't play it, as simple as that. I created this to have fun. I like the idea of being able to be incredibly mobile as a tank, teleporting around with Streak, while running around the boss at Mach 3, and supersonic punching the boss with boundless storm. The only thing I can say is experiment. Play around with different gear sets and abilities, find a style that works for you, and that you have fun playing. Games are for you to have fun, so have fun. :D

This is pretty much it for this build, if you want anymore information, ask away in the comments, and ill try to respond when I remember to check . :P