[3.19] Witch - Skeleton Necromancer - 16+mil. DPS, 63 Skeletons in total!

Helmets:
you want a helmet with life, and the craftable "+1 zombie, +1 skeleton" on it. When you have the money, buy or craft a minion helmet with " +1 to level of all minion skill gems" and "Nearby enemies take 9% increased physical damage".


Amulet/cluster jewels:
We want "+1 skeleton" and "+1 of all intelligence skill gems" on the amulet, because we try to stack the level of the skeleton skill gem. More level of skeleton skill gem give the skeletons more life and damage.
Annoint it with "Enduring Bound".

Your cluster jewels will be also have "minions have 5%chance to deal double damage when your minions are on full life".
And with the animaten guardien setup, your minions are allways on full life hehe.


Rings:
On the rings, we need 2 socketed rings for the "clarity" and "flame dash" gems.
Import are life, dex., and restistances.
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Body Armour:
When you want the best out of it, you need the "socketed support gem" of your chest for the empowerment, with this gem, you have 10 zombies instead of 9.
Other mods are life, resistance. Or you get a "+1 Skeleton chest" instead.


Boots:
Classical zombie/skeleton boots, just for staying skeletons.

or you invest some money for better life, resistance and minion damage.:


Belt:
Life, life and resitances. And some life for Minions :)



Gloves:
Try to craft it by yourself with the essences.You can pump much damage out of a glove for your minions:


Weapon:
The expensive one in this build, the bow:
You need a multi. craft on it for the +3 socketed support gem (the empowermentgem will increase the level on your skeletons about 7!).
The rest is damage.
When you have the money, you can craft on it the "avian skill". It gives your minions again 5% damage to deal double damage.


and at least, Quiver:
Just life and resistance. The damage from the quiver here is useless for this build.