Reworked Necromancer

This Subclass is a rework of the standard Necromancer. Instead of focusing on maintaining a large undead horde, this subclass gives you a lower number of elite undead knight that can be highly customized. 

Undead Knighthood

As an experienced necromancer, you do not create any normal Undead. The Undead you create are larger, stronger, and more adept than your average zombie. You have crafted a Undead Knight, able to wield any martial weapon, firearm, or armor. You have devoted a large amount of time making sure this Undead is ready to serve you as a loyal Knight. It understands all the Languages you speak and listens to your every command. It goes after you in combat and follows your commands, if you do not issue any commands it takes the dodge action and tries its best to defend itself. 



If the Knight would be destroyed. You can remake it over the course of a Long rest as long as you have the body of the Knight or another humanoid corpse.

Undead Upgrade

You may choose Three Tier 1 Upgrades to give to your Undead. These Upgrades are made to make your Knight stronger and harder to kill. The options are described below, whenever you level up you may move or change the Upgrades you have on your Undead.

Max Hit Point Increase
Whenever you take this upgrade, The Undead's max hit points becomes determined by 20 times your proficiency bonus instead of 15. Additionally, you may add this upgrade to an Undead multiple times. Each additional Upgrade increases the amount of hit points per proficiency bonus by 5. For example, each upgrade will go 25 hit points per prof, to 30 hit points per prof, to 35 hit points per prof. 

Weapon Ability
The Undead gains a weapon ability. You can put this upgrade on an Undead multiple times, but it cannot be used to gain a mastery ability.

Magical Fortification
The Undead gains proficiency in 2 saving throws of your choice. Additionally, whenever you cast the shield Spell the Undead's AC increases by 5 until the duration of the shield spell ends.

Storm Born
The Undead becomes Immune to Lightning damage and whenever it would take Lightning damage it heals that much instead. Additionally, whenever they would take Lightning damage until the end of their next turn their movement speed is doubled and they have advantage on attack rolls.

Battlefield Title
This Undead has shown more aptitude then your average Knight. Replace an additional ability score of the Undead's with your Spell Casting Modifier.

Hatred
This Undead does an additional 1d6 Necrotic damage on its weapon attacks.

Tier 2 Undead Upgrades

At 6th level, you may choose to either gain another Undead and 3 additional Upgrades or gain 4 additional Upgrades. As well as this, you gain access to stronger Tier two Upgrades. 

Combo Attacks
This Undead may participate in your Combo attacks. Whenever you would participate in a successful Combo Attack, Your Undead may also use its turn to make attacks against the target. The Undead will also gain any bonus you would gain for attacking in the combo attack. (I.e advantage, additional damage, additional actions, etc.)

Multiattack
The Undead makes an additional attack as a part of its attack actions.

Undead Fortitude Buff
The DC for your Knight's Undead Fortitude is changed to "Half the amount of damage taken". Instead of "5+Half the amount of damage taken".

Syphon Life Force
Your Undead learns the Life Transference Spell. It does not heal from the necrotic damage it takes from this spell. Additionally, he may cast it as if it didn't have Somatic Components and without expending a spell slot. But the spell cannot target anyone else besides you. 

Arcane Conduit
Whenever you cast a spell that targets "Self", you may have it target this Undead instead. If you do, treat any effects of the spell as if the Undead had cast it but using your spell casting modifier. Additionally, if it requires concentration you are the one who must concentrate. The Undead must be within 30ft of you to cast a spell this way.

Hatred Tier 2
This Undead's Hatred Damage increases from 1d6 to 2d6. The Undead must have the Hatred tier 1 ability to take this one.

Tier 3 Undead Upgrade

You may choose to gain an additional Undead Knight and 3 Undead Upgrades or 4 Undead Upgrades. Additionally, you gain access to Tier 3 Undead Upgrades. These Upgrades are listed below. 

Weapon Mastery
The Undead gains a Mastery in a Weapon it already has 2 other abilities in. 

Eternal March
The Knight regains 10 hit points at the start of each of its turns as long as it has at least 1 hit point. Additionally, the Undead gains one use of Legendary Resistance. It regains this use whenever you finish a long rest.

Necrotic War Charge
You gain a +3 to Initiative checks for each Undead with this ability. Additionally, whenever you pass an initiative check each Undead with this ability may make an additional attack this turn.

Harold of the Apocalypse
Whenever this Undead would kill  living humanoid creature. You may choose to have that creature rise again as a zombie under your control. This zombie rots away and disappears in 24 hours unless the Animate dead spell or similar magic is cast on them.

Reinforced Skeletal Structure
This Undead cannot be forceable moved unless the ground its standing on is moving. Additionally, its AC increases by 5 and cannot be reduced below 15.

Hatred Tier 3
This Undead's Hatred damage increases to 3d6 instead of 2d6. The Undead can only have this upgrade if they have both tier 1 and tier 2 hatred.

Master of the Horde

You and your Undead Knights gain a bonus to attack and damage rolls equal to the number of Non-Knight Undead you control. This bonus maxes out at 10.