Aaand here I am again 
, with another build of mine.
The concept is not new, this is my approach to make use of some nice-rolled Soulrends in my stash. I have to confess - while leveling a Spellbreaker, I thought of another build. But then changed my mind, because of some… reasons its glassy nature 
. And so gradually Soulrend Morgoneth Spellbreaker was constructed. Yes - Reaper makes more sense, more damage, more RR, even health is better, but - at the cost of too many buttons to press. If you want greater results - make Reaper, QoL and “chill” - Spellbreaker. Something like that.
Now, to the build machine!
1. Grimtools link.
Because we have enough DR procs, life-leech and desperately need Health with %Phys res, Leviathan path was chosen, with Amatok and Rhowan’s Crown (for single RR class) instead of Revenant. A lot of damage and barely viable HP pool 
. Hope 1.1.9.6 will fix the second part.
2. In-game character stats.
general stats, only passive buffs and Pneumatic Burst are active (Damage Per Second for Amarasta’s Blade Burst)
SS damage breakdown
magic stats
defense stats
3. Gear/Build explanation.
To hardcap SS line and have workable HP pool - these two goals decided my gear choice. More %Phys res would be pretty helpful, but alas 
.
- Core items.
Set. Armor of the Eternal Night. Overall great set for Cold Nightblades with a lot of Nightfall skillpoints, DR proc, %Armor, even CC res. But that Pierce-to-Vitality conversion specifically for SS
. Why? Is Vitality SS even a thing? For hybrid we need a weapon with split Vitality/Cold damage. Does it exist? No answer so far. At least, Acid-to-Cold conversion is usable (for flat Acid from LA and flat Poison from NJE modifier and Repertoire).
Weapon. Soulrend. A huge Cold stick from Alkamos with CDR, life-leech, +2 to Nightblade, NJE and Phantasmal Armor points on top, damaging proc. Nice weapon for 2H SS. Conversion does not have any meaning though. - Mandatory items.
Rings. Dread Sigils of Alkamos. Large numbers of %Cold Damage, OA, speed, useful skillpoints (more for DW Nightblades), good proc. The only downside - they drop once in a millennia
. Wish you luck.
Amulet. Ellena’s Necklace. All Cold Nightblade amulets lack needed stats (DA, Health, resistances). This amulet with Cold-related affinity can be pretty good. Also, some points to Star Pact and damage modifiers to it and VoS. For green MIs - Elemental/Pierce/Chaos/Slow resistances are a priority, then Health/DA, then usual stuff like %Cold damage and OA.
Pants. Slithscale Legwraps. Good Acid/Cold slot with points to SS, NJE, even racial damage to Beasts (Kuba says hello), Cunning (what?).
Relic. Nidalla’s Outbreak. Supreme Cold/Acid Nightblade relic with great stats, DA and proc.
Belt. Gargoyle Waistguard. +1 to Nightblade, in-built %Slow res, Vitality-to-Cold conversion (more impactful for Reapers though).
Boots. Amatok’s Step. %Cold Damage, %Slow, %Phys and Poison res, %Health, DA, another damaging proc. From all Epic and Legendary boots for this build they are simply the best. - Can be changed.
Medal. Undying Oath. Cold medal with big Health values, some nice modifiers to Pneumatic Burst. You can use Mark of Calamitous Desires, less HP, but more good stuff, craftable.
About Resistance Reduction. Total amount is ~88% (-33% from VoS modifier, -23% from Murmur constellation and flat 32 from Rhowan’s Crown constellation) plus 20% from Viper constellation, so it can vary. Not much. Kuba is tough but doable thanks to 21% racial damage to Beasts, Fabius and Moosi can hurt a lot, so be careful and do not waste MoE and BB for nothing. No problem with other Nemeses.
4. Gameplay.
SS → ABB → RoS. Repeat. Pneumatic Burst to heal and buff, MoE, BB, Nullification in dire situations. Amatok’s Breath to escape tough crowds (but most time I just Shadow Strike some distant enemy 
). Many abilities that freeze your opponents also help a lot. But do not get ignorant - Spellbreaker is not so tanky. As you will see my SR video below, one mistake can cause problems.
5. Videos.
Avatar of Mogdrogen. Second phase is hard, requires attention and correct use of defensive cooldowns (not my case 
). One Aether cluster, potions are in the video, healpots according to situation.
Kra’Vall.
Lokarr.
Mad Queen.
Morgoneth.
SR 75 full (stupid death from Fabius at Bossroom, still beat it in time).
This was my variation of 2H Cold Shadow Strike . Not the sturdiest one, definitely not for sleepy playing, but fun and quite damaging. There are also good Cold SS builds by @fordprefect and @RektbyProtoss (for HC) that utilise Soulrend or Morgoneth set, check them out as well. Maybe you will find some inspiration for your own Cold-hearted shadow walker . Cheers!
.
police arrest that thief ! 
). Have fun!