Oath of Greed (Soul Siphoning)

You have sworn your alignece to powerful undead lord and for that you have been connected to its philactery. Thanks to that you have gained the ability to reap souls from those you have befallen and use those souls for your own ends

Oaths

1. Power
I swear to be the strongest and all that stand in my way will become tools of my success

2. Bigger Purpose
I swear to accomplish greatness! By any means necessary...

3. Survival of the Fittest
I swear to rid the land of fools who don't deserve to live!

Twisted Ideal

Your path has twisted divine paladin power into something fundemantaly wrong and blasphemous. All of the radiant damage you deal is automaticly converted into necrotic damage. Also some of your abilities have been change by your Oath. (Remember that these changes cannot be applied to dndbeyond character sheet. You need to make a printed version and edit it)

Your Lay on Hand  becomes Ghoulish Caress

Starting at 1st level, you hava a pool of necrotic energy equal to 5 times your Paladin level. As an action, you can touch a creature and administer any anount from that pool dealing that much necrotic damage to the creature and you heal half of the damage dealt. Alternatively you can touch an undead creature other than yourself and spend any amount from the pool and heal that undead for that amount.

Your Divine Smite becomes Heretic Smite

Starting at 2nd level, when you hit a creature with a melee weapon attack, you can expend one spell slot to deal necrotic damage to the target, in addition to the weapon’s damage. The extra damage is 2d8 for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st, to a maximum of 5d8. The damage increases by 1d8 if the target is a celestial or by 1d6 if the creature has a good alignment

Your Aura of Protection becomes Aura of Frailty

Starting at 6th level, whenever an enemy creature within 10 feet of you must make a saving throw, the creature gains a panelty to the saving throw equal to your Charisma modifier (with a minimum bonus of -1). You must be conscious for the effect to be active.

At 18th level, the range of this aura increases to 30 feet.

Your Aura of Courage becomes Aura of Terror

Starting at 10th level, enemy creatures within 10 feet must succed on a Wisdom saving throw agains your spell save DC or be frightened. They make another saving throw at the end of each of their turns to shake off the effect. You must be conscious for the effect to be active.

At 18th level, the range of this aura increases to 30 feet.

Your Cleansing Touch becomes Contagious Touch

Beginning at 14th level, you can use your action to touch a creature and bestow blinded, deafened, poisoned or restrained. They can make a saving throw against your spell save DC at the end of their turn to try to end the effect. 

You can use this feature a number of times equal to your Charisma modifier (a minimum of once). You regain expended uses when you finish a long rest.

Oath Spells

You gain oath spells at the paladin levels listed.

Oath of Soul Siphoning Spells

PALADIN LEVEL	SPELLS
3rd	inflict wounds, hex
5th	silence, shadow blade
9th	speak with dead, spirit guardians
13th	blight, death ward
17th	holy weapon, danse macabre

 

Soul Siphoning

When you drop a creature that is not an undead or a construct to 0 hit point with your Heretic Smite, Ghoulish Caress or Critical Hit the creature automaticly dies and you steal it's Soul.

You can use that Souls for various effects

Name	Effects
Frozen Paralysis	As a bonus action choose a creature within 30 feet of you. You can spend any amont of Souls and for each of that Souls that creature looses 25 feet of movement in all types of movement for 1 minute and is covered in frost. At the end of that creature's turn it can make a Constitution saving throw against your spell save DC to end the effect.
Heretic Deal	When you hit a creature with a weapon you can spend any amont of Souls instead of spell slots for your Heretic Smite at the same level as the amount of Souls spent
Blasphemous Condition	As a bonus action choose a creature within 30 feet of you. You can spend a Soul and that creature has disadvantage on the next saving throw of your choice.
Sacriligious Blindness	As a bonus action choose a creature within 30 feet of you. You can spend a Soul and that creature gains the blindness condition. At the end of that creature's turn it can make a Constitution saving throw against your spell save DC to end the effect.
Profane Healing	As a bonus action you can spend a Soul, for each of this Souls you gain temporary hit points equal to twice yur Paladin level

Aura of Life Draining

While you are conscious, whenever an enemy creature that is neither undead nor construct dropes to 0 hit points within 10 ft. it automaticly dies and you regain hit points equal to your Paladin level.

At 18th level, the range of this aura increases to 30 feet.

Undead Body

Beginning at 15th level, you are considered undead. You don't age, you can't be Poisoned and you are immune to poison damage. You also gain the Undead Fortitude ability.

Undead Fortitude. If damage reduces you to 0 hit points, you must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, you drop to 1 hit point instead.

Torrent of Souls

At 20th level, as an action, you can unleash a torrent of souls, frost and death from you. For 1 minute, a storm rages all around you in a 60-foot radius.

The area is heavily obscured, and exposed flames in the area are doused and the speed of enemy creatures in the storm is halved and if an enemy creature is concentrating in the spell's area, the creature must make a successful Constitution saving throw against your spell save DC or lose concentration.

In addition, whenever an enemy creature that is neither undead nor construct drops to 0 hit points it dies and you steal it's soul.

Once you use this feature, you can’t use it again until you finish a long rest.