Revenant

Creation
Revenants are a race of undead beings that have been described as a cross between a vampire and a zombie. The way a revenant is created is very similar to the way a Yōkai is created. However, they're not created from the emotions of others. Instead, they're born from the last emotion a human feels before they die. This emotion ultimately revives the human in the form of a revenant. Not any emotion will work because it has to be a strong desire for revenge. This desire is known as the "Curse of Hatred" and it is the source of all of a revenants abilities and weaknesses.

Physiology and Habits
Revenants physical appearance can differ from one revenant to another. Their physical appearances can range from monstrous and terrifying creatures to creatures that look like an innocent human child. Despite the very wide variety of physical appearance's most revenants look human or at least close to looking human.

Physical Abilities
Most of a revenants physical abilities are considered top tier by human standards. The only exception is their supernatural strength, speed, and regeneration.

Weaknesses
Currently, revenants only have two known weaknesses: Devil Slayer Magic and Shinigami Auxiliary Magic. These magics are able to kill a revenant because they are able to destroy the very thing that keeps them alive: their Curse of Hatred. How much exposure to Devil Slayer Magic and Shinigami Auxiliary Magic it takes to kill a revenant depends on the individual. The only other way to kill a revenant is to allow them to exact their revenge, completely destroying their Curse of Hatred instantly.