This Paladin subclass was inspired by a metal song about an anime, so that should tell you what your getting.
Paladins of the Oath of the Damned swear by no high ideals or divine mission. They seek only slaughter and death becoming an unstoppable wirlwind of destruction.
Mechanically you gain a suitable spell list and two new Channel Divinity options. One lets you offer up your life force for advantage and the second lets you summon two minor undead to fight by your side.
At later levels your Divine Smite becomes Damned and you can heal form the necrotic damage, you also gain the ability to sacrifice your summoned creatures to heal yourself and regain your abilities.
Your final ability turns you into a walking damnation that ruls the blood soaked battlefield without pity or remorse.
- from the publisher's blurb