First I will get into the synergy in this build, and try to explain how come its these items that is the better choice.
You are using the Inarius Set.
(2) Set: This bonus does not really matter since you are a support.
- Bone Armor Damage is increased by 1000%
(4) Set: This bonus provides extra toughness and that is always useful.
- Bone Armor grants an additional 2% damage reduction per hit
- Bone Armor also activates a swirling tornado of bone, damaging nearby enemies for 750% weapon damage and increasing the damage they take from the Necromancer by 2750%
Nice, but what does the Tornado proc in this?
The Ess of Johan - 80% chance to pull enemies towards you, that is nice since that is your job to create density for your Dps.
The Butcher´s Sickle - 25% chance to drag enemies to you when attacking, again this is helping with the density.
Solanium - Critical hits have 4% chance to spawn health globes, this helps your team with throughout the fights and the WD Passive.
Those are the effect by the set alone, what else is there.
Rune: Aura of Frailty (The lazy rune)
What does it proc?
Dayntee´s binding - that is 50% damage reduction when an enemy is near you.
Briggs´Wrath - Pulls the enemies towards when they are cursed. That means when you run into them.
This is where The Ess of Johan & The Butcher´s Sickle help you keep them together afterwards.
Rune: Blood Sucker this is just to collect the Health Globes easy and also helps with sustain.
Aquila Cuirass - Since we do not use any essence the 50% damage reduction will always be up.
Nemesis Bracer & Strongarms This just depends on what the team needs, you will proc Strongarms often with all the proc´s you have.
The rest should be mostly self explainable.
But to cover up the things i know you think are weird.
Weird Skill setup
Land of the Dead? Corpse Explosion? and maybe the passive Life from dead?
Since there are not any good options I believe this synergy is the best to take.
Land of the Dead:
Rune: Frozen Lands - This rune helps with density control and the skill itself provides ´´free´´ corpses. If have a big CD though.
Rune: Close Quarters - This skill does no really matter as long it is an corpse skill, since we use it to Proc Life from Dead passive.
Please Comment below feedback and your though´s
Best Regards Dominic.