Sets:
5x black rose (5x armor, 5x heavy)
1x bloodspawn (1x armor, 1 heavy)
2x marksman (1x armor + 1x jewelry, 1 medium)
3x agility (2x jewelry + 1x 2h + 1x shield)
1x convenant axe (for 1h+shield bar)
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enchantments:
6x max stamina on armor
1x max stamina on shield
1x max health on armor
3x increased weapon dmg on jewelry
1x increased weapon and spell damage for 5 seconds on 2h
CONVENANT AXE: let the OP enchantment on it! It means you get almost 700 weapon dmg! And this stuff stacks with the enchantment on 2h on weapon switch + light attack to proc it ---> around 1200 more weapon dmg for dawnbreaker and executer in the first seconds!!!
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traits:
Try to achieve more than 2100 critical resitance --> min 6 pieces (+ CP that are 10% = 625 [250 = 4%]) with impenetratable.
Rest could be more impen or what ever you think is needed for your PvP experience.
2x max stam on jewelry
1x max health on jewelry
All weapons should be sharpened. (the axe could be nirnhoned ! Because dmg is also fine on shields and sharpened is not that strong on 1h, BUT nirnhoned axe is not available)
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Buff food:
the blue orcinuim stuff ---> max health + stamina regeneration
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potions:
restore health + restore stamina + 10% more chance for critical weapon hits
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stats: (with buff food on 1h+shield and specialy without any PvP buffs--> all stats are min values)
max magicka: > 9K
max health: > 26K
max stamina: > 32K

magicka reg: ~ 560 [+ black rose + constitution passive: ~ 1300 --> less in practise ofc]
stamina reg: > 2050 [+ redguard passive + blackrose + constitution passive: ~ 3400 --> around 3100 -3200 in practise]

weapon dmg: > 2300 [+ enchantment + heavy armor + major dmg buff: > 3850] / 2h: > 2600 [+ ... + seconds enchantment: > 4500]
critical chance: 23,5% [+ potion: 33,5%]

spell resistance: > 19K [ > 24 K using hurricane]
physical resistance: > 19K [ > 24K using hurricane]
critical resistance: > 2100
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optional skills:
These skills are used for PvP in the open world. You can find some alternatives in the following text:
For duels [without fasalas guile] i recommend hurricane instead of streak.
If you have problems handling your stamina and you think you can use more magicka you could replace reverb bash with rune cage. Rune cage grants 2% more weapon dmg and when you hit an enemy you get a heal of 4,5% of your max health (in PvP, else 9%).
In Duels it could be also usefull to use the greater storm attro insteatd of WW. Grants 5% more stamina reg and should be used as defensive. Search for my old build (v2.3.8) to check how to use attro.
In a good group you can drop one ability (and replace it a skill of daedric summoning) and use one the new negates.
They are really helpful against malubeth (IT IS BOTH BUGGED AND NOT AFFECTED BY BATTLEPSPIRIT) noobs or overheal templars in enemies groups.
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Animation Canceling:
Cancel all you got :D All abilities on the 1h+shield bar are meant to be canceled by Light Attack + Abilitiy + Shield Bash. 3 attacks in around 1 second!
Execute combo: light attack on enemy to make sure enchantment is active ---> switch weapons --->
light attack + dawnbreaker + bash (with 2h) ---> repeat executer + light attacks.
Light attack is needed to proc the second enchantment and the bash is needed to skip dawnbreaker quickly and use the executer instant.
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How to stam tank sorc:
Even with this regneration stats the animation canceling will drain your stamina! So in many cases you have to use heavy attacks that are also buffed by heavy armor. It is intented that your stamina bar will jump the whole fight, especially when u block or dodge roll more than 1 time. Being tanky still needs to block heavy burst combos so be careful with stamina.
Buff rotation:
All buffs are placed on the secondary bar. The min duration of a skill is 15 or 20 seconds (depending on hurricane or shuffle). Using hurricane means that you have to rebuff shuffle and hurricane every 15 seconds and rebuff rally and critical surge every 30 seconds. --> Weapon switch every 15 seconds. Not using hurricane (min 20 seconds duration of shuffle) allows to be more dynamic. 20 and 15 seconds rebuffs. Choose it depending on the fight.
IF THERE IS FASALAS GUILE stop using hurricane or boundless storm! This is the ultimate stam sorc nerf and using one of these abilities will kill you. Both proc on fasalas guile and you cant even stop dealing dmg for 2 seconds and heal with rally or vigor! Therefore i use streak in open world.
Problems:
1. Fasalas guile (see the tips above)
2. Movement --> therefore i use streak in open world. For duels its not needed.
3. 20% more stam reg? Nope! Only for magicka sorcerers.... Stamina sorcs can not use the 20% passive without conditions. You get the passive when you a) drop 1 neccesary ability and slot 1 completly useless ability. b) drop 2 abillities and get 8% more stamina and 11% more dmg on heavy attacks (bound armaments) or c) drop 1 ulitmate for attro. I know this is bullshit ....
In my opinion 1 useless ability or 2 abilites for a way more dmg is not an option. With this build you need to be tanky and being tanky means you need to resist inc dmg. Since the stam sorc dont have any usefull abilities for stam or magicka (on stamina based) in deadric summoning it is not helpful to drop some buffs or debuffs.
As a result i use attro in duels and WW in open world.

If you have any other questions ask me ingame or here - i will add the notes in the text.