Oath of Blood

Paladin subclass inspired by the Blood God Khorne of Warhammer, though it can be used in other, non-Warhammer settings with a few name tweaks, lacks any real flavor text due to my dislike of flavor writing.

Blocked From Magic

Due to the nature of your oath, you can no longer cast spells and as such, the only way your spells slots can be expended is by activating Divine Smite. Your Divine Smite now deals d10s of slashing, piercing, or bludgeoning damage, depending on the damage your weapon does, you lose your Lay on Hands feature, and your Divine Sense feature now detects spellcasters and magic creatures. Due to this, you have no oath spells.

Channel Divinity

When you take this subclass at 3rd level, you gain the two following Channel Divinity options

• Mortal Strike: When you take the attack action, you can expend a use of Channel Divinity to replace one of your attacks with a Mortal Strike. When you perform a Mortal Strike, roll a d20, on a roll of 2-10, your Mortal Strike misses, on a roll of 11-19, you hit the creature and double the number of damage dice you roll (or double the damage of the roll, depending on your group's crit rules). On a roll of 1, your attack misses and you take 5d10 fire damage, this damage cannot be reduced in any way. On a roll of 20, if the creature's Hits Points are equal to or less than 10 times your Paladin level, you instantly slay the creature, otherwise triple to dice rolled (or the damage of the roll)
• Khorne's Retort: Whenever you take damage from a creature within range of your weapon, as a reaction you may expend a use of Channel Divinity to make an attack against the creature who attacked you and a number of other creatures up to your proficiency bonus within range of your weapon. Each attack gains +2 to hit and an additional 1d4 damage for each creature targeted by this attack.

Aura of Bloodletting

Beginning at 7th level, all bludgeoning, slashing, and piercing damage inflicted by you or friendly creatures within 10 feet of your bypasses resistance. Additionally, whenever you or a friendly creature within 10 feet of you reduces a creature to 0 Hit Points, the killer may move up to half their speed and make an attack roll against another creature. At 18th level, the range of this aura increases to 30ft

Gifts of Khorne

Beginning at 15th level, your Strength score increases by 2, up to a maximum of 22, your attack rolls score critical hits on rolls of 8 and 20, you have resistance to damage from spells, and you have immunity to the charmed and frightened conditions.

Rage Incarnate

Beginning a 20th level, you can use a bonus action on your turn to gain the following benefits for the next 10 minutes:

• You gain a flying speed of 80ft
• Your size becomes huge
• You can attack three times when you take the attack action
• All damage you take from spells and magical attacks is reduced to 1/4
• You gain resistance to fire damage
• Your Strength score becomes 30

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