Summary
- Primal Devils are the most powerful due to widespread fears and their long existence in the Chainsaw Man universe.
- The Darkness Devil showcased immense power, easily defeating foes with its mysterious abilities.
- The Aging Devil, the most recent Primal Devil introduced, despises youth and demands sacrifices in exchange for carrying out contracts.
Devils are the bread and butter of Chainsaw Man. These monstrous creatures are essentially the manifestations of the fears of humanity, where any fear regarding a certain thing accumulates and eventually forms into a Devil based on what has formed it. The threat level of each Devil has to do with how widespread the fear is, so the series has shown relatively non-threatening ones such as the Tomato Devil to powerhouses like the Gun Devil.
However, none match the sheer strength of the Primal Devils. Also known as the Primordial Devils, these monsters are formed from the oldest and most basic fears that humans have had since their earliest days, making them the most powerful Devils in Chainsaw Man by a massive margin. So, let's take an in-depth look at just how strong they are and break down the few Primal Devils the series has introduced so far.

Chainsaw Man: Aging Devil, Explained
Gerascophobia is a primal fear that resulted in the creation an extremely powerful Devil.
What Are Primal Devils?
Formed From Humanities' Primordial Fears
The Primal Devils are the most powerful Devils in all of Chainsaw Man due to their fears largely being the most widespread throughout humanity. Not only this, but they've also been there since the beginning of humankind and have been growing in power since then, so this puts them far above any other Devil in the series due to the amount of time they've had to grow in strength.
Moreover, Primal Devils have also never undergone the death-and-rebirth cycle, as is common with most Devils, because of how powerful they are. This means that throughout history, no Devil has been powerful enough to kill them, putting them far above everyone else in terms of power. Only 3 have been shown so far in the series and one has been named as the greatest and most terrible Devil of them all.
The Darkness Devil
Formed From The Fear of the Dark
First Appearance |
Chainsaw Man, Chapter 64, "Welcome to Hell" |
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Story Arc |
International Assassins Arc |
The first of the Primal Devils to ever be shown, the Darkness Devil was so powerful that everyone it went up against was easily defeated with barely any effort. The design of this horrifying creature seems to be many emaciated humans stacked on top of one another with a skeletal head at the very top, and the whole body cloaked in darkness. Though it is silent and hostile to anyone it deems a threat, it is still sentient and intelligent as it can make contracts with people.
They're the transcendant Devils who have never once experienced death.
Its abilities are intentionally kept vague but the power it possesses is immense. In the blink of an eye, the Darkness Devil was able to remove the limbs of many people at once and string them along behind itself and even contorted Denji's body when he tried to attack him. Moreover, it also formed a black blade that could kill anything that it touched as well as controlling every facet of darkness to manipulate it how it pleased.

Chainsaw Man: The Public Safety Devil Hunters, Explained
Devils have run rampant in Chainsaw Man, so there are sectors employing its citizens to dispatch them. But how does it work?
The Falling Devil
Formed From The Fear of Falling
First Appearance |
Chainsaw Man, Chapter 122, "The Prophecies" |
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Story Arc |
Falling Devil Arc |
The Falling Devil is an interesting one because, despite being one of the most powerful beings in existence and having never been killed or reborn even once