Path of the Necrozerker

You have found a way to raise the dead through your pure might and control them in your rage. Necrotic energy fueling your veins as you fight and sapping the life from your fallen minions. You are the combination of might and death.

Death's Will

Upon taking this subclass at 3rd level going into your rage you have resistance to necrotic and radiant damage, and undead creatures will be turned away from attacking you, having disadvantage on attacks against you.

You also are able to cast the spell Speak With Dead at will.

Once per turn you can charge your weapon with necrotic or radiant damage dealing 1d6 necrotic. 2d6 at level 10, and 3d6 at level 15.

Death's servants

Getting to level six, you gain the ability to cast Animate Dead at 3rd level twice per day. Even in rage you can command the undead as a Bonus Action as long as you cast the spell prior to raging. 

With every undead that you control goes down you gain 1d12 temp hp, stacking with subsequent undead being downed but not with any other way of gaining temp hp.

Life in Death

With every undead that you control goes down you gain 1d12 temp hp, stacking with subsequent undead being downed but not with any other way of gaining temp hp.

Undeath Form

You gain a new set of traits at level 10, while raging you get a 15ft aura of fear where all who enter must make a wisdom save to not become frightened at the beginning of their turn, advantage on attacks against creatures with less than half their health or undead, and when you kill creatures of humanoid builds you can turn them into undead (zombie), dying after half your level amount of hours and having a max of proficiency bonus amount per day.

Necromancer's Empowerment

Reaching 14th level, you can cast Create Undead at 6th level twice per long rest, controlling them during rage as a Bonus Action if casted prior to raging. And animated dead can be casted at up to 4th level twice per day if desired.

You also gain resistance to necrotic and radiant damage while out of rage and immune to necrotic and radiant damage while raging.