Death Knight

Level Abilities
1 Cantrips, Rank 1 Spellcasting
2 #Runeforge
3 #Contagion, Rank 2 Spellcasting
4 -
5 Rank 3 Spellcasting
6 #Relentless
7 Rank 4 Spellcasting
8 -
9 Rank 5 Spellcasting
10 #Lord of the Dead
11 Rank 6 Spellcasting
12 -
13 Rank 7 Spellcasting
14 #Major ability TBD
15 Rank 8 Spellcasting
16 -
17 Rank 9 Spellcasting
18 #Major ability TBD
19 -
20 -

Path of the Death Knight

The Path of the Death Knight is a generic path intended for use by martial classes (Barbarian, Fighter, Ranger) and can be taken as a replacement for any of these classes paths or archetypes.

You died, and were brought back to life by death magic. Now, it is a part of you--the darkness calls to you, and you are drawn to it.

You are not undead specifically, but rather "tainted" by death magic, and able to develop powers based on that magic.

Basic Abilities

When you select this path, you gain the following abilities:

Spellcasting

Starting when you choose this path at 1st level, you gain access to the death knight spell list and vitae casting mechanic as detailed below:

Spell List #Death Knight Spell List
Spell Slots You use #Vitae in the same manner as a Witch. You have 1 Vitae per 2 levels + your Constitution modifier.
Spells Known and Casting You know all spells on your list and do not need to prepare.
Cantrips known At 1st level, you know 2 cantrips of your choice from the death knight spell list. You learn additional death knight cantrips of your choice at a rate of 1 per 5 levels.
Spellcasting Ability Charisma is your spellcasting ability for your death knight spells, since the power of your magic relies on your ability to project your will into the world. You use your Charisma whenever a spell refers to your spellcasting ability. In addition, you use your Charisma modifier when setting the saving throw DC for a death knight spell you cast and when making an attack roll with one. *Spell save DC = 8 + your proficiency bonus + your Charisma modifier *Spell attack modifier = your proficiency bonus + your Charisma modifier
Spellcasting Focus A death knight uses their weapon, prepared as a rune blade, as an arcane focus for their spells. A weapon may be imbued as a rune blade as part of a ritual spellcasting that requires a short rest and 20 gp worth of material components.

The #Death Knight Spell List is a limited version of the Witch#Witch Spell List.

Contagion

Beginning at 3rd level, the necromantic energy within you metastasizes into a virulent infection. You have resistance to all disease-based effects and poison, however you also gain vulnerability to radiant damage.

You are a carrier of the disease below, to which you are immune. Once per round, as a free action, you may infect a held weapon with any one disease below, replacing any others already on it; the disease automatically infects all targets you strike for damage.

Runeforge

You may attune a weapon as your athame, despite it being regularly used for bloodshed. This allows you to ignore the somatic requirements of spellcasting, meaning you may use two-handed weapons or dual-wield. It also grants use of the following maneuvers:

Relentless

Beginning at 6th level, you become as relentless as the very march of death itself. You are immune to fear effects, and any effect relying on emotion to control you. You have resistance to movement-impairing effects, and your movement rate can never be lowered beneath 50%. You may act normally when at 0 hp, albeit with disadvantage to all attacks, checks, and saves, until you die.

And when you die, you may use the following ability (max once/day):

Lord of the Dead

Beginning at 10th level,... TBD

Death Knight Spell List

Cantrips

Notes on "rank":

Level Rank
2-5 1
6-9 2
10-13 3
14-17 4

1st-level

;Debilitation:

;Healing:

;Summoning:

2nd-level

;Control:

;Debilitation:

;Defense:

;Utility:

3rd-level

;Assault:

;Control:

;Mobility:

;Utility:

4th-level

;Assault:

;Debilitation:

;Defense:

5th-level

;Assault:

;Summoning:

System Designer's Notes

"Chill" should be a special mechanic, wherein any effect that causes "chill" follows these rules:

Chill effects would include:

Deathly Chill might disadvantage enemies' saves against chill