Ragnir One Piece: Powers, Devil Fruit & Loki’s Hammer

Character Guide – Updated August 2026

Most articles about Ragnir in One Piece attribute the ice to Loki. The ice belongs to the hammer.

Eiichiro Oda revealed this across twelve chapters: the hammer’s nature in 1170, its first named attack in 1171, the Ratatoskr legend in 1175, and the Devil Fruit name in 1182. Most coverage was written in the gaps and never updated. This page puts the sequence in order with chapter and page citations.

What Is Ragnir in One Piece?

Ragnir is a giant warhammer that ate a Devil Fruit. The object itself is the fruit user, not the person holding it. The fruit is the Risu Risu no Mi, Model: Ratatoskr, a Mythical Zoan that lets Ragnir transform into a giant ice squirrel, or into a squirrel-hammer hybrid, at will.

Objects eating Devil Fruits is established in the series. The concept was first raised in Chapter 184 during the Arabasta arc, and the best known example is Spandam’s sword Funkfreed, which ate the Zou Zou no Mi. Funkfreed obeys its owner. Ragnir picks one.

Ragnir’s role for centuries was guardianship. In Chapter 1170, King Harald states that Ragnir had guarded Elbaph’s national treasure Devil Fruit for hundreds of years and in all that time judged nobody worthy of eating it. Most summaries skip that detail, and it is the one that makes Loki’s arc work. He did not steal the fruit. He passed a test the hammer set.

Two Devil Fruits, One Fighter

Loki fights with two separate Mythical Zoan powers at once: his own, and his hammer’s. Most coverage treats them as a single power set.

The short version: the ice is the hammer’s, the lightning is Loki’s. Every time Loki called lightning down while swinging Ragnir, he was using his own dragon fruit and channelling it through the weapon. The hammer was never the lightning source. It was the conductor.

One detail absent from other coverage: the Norse Ratatoskr has no ice powers. In the source myths it is a squirrel that carries messages up and down the world tree Yggdrasil. The ice is Oda’s invention, not an adaptation.

Why Ragnir Is Not Mjolnir

The Mjolnir comparison breaks under one test. Below is a four-condition framework for measuring whether a weapon judges or is merely powerful, called the Worthiness Gate. This is ReadifyPro’s own analysis, not canon terminology.

• Autonomy: Does it act without a wielder holding it?
• Refusal: Can it reject a candidate outright?
• Trial: Must you defeat it before it accepts you?
• Reversibility: Can it revoke what it granted?

Ragnir clears three conditions on-page and is the only weapon here to clear Trial. Mjolnir’s judgement is an enchantment placed on it from outside: the hammer is a lock and worthiness is the key. Ragnir sets its own terms and fights for the privilege. Withdrawal of the grant has never been shown, which is why that column reads untested rather than yes.

Niflheim or Nibelheim? The Attack Name Split

Two spellings circulate because the official English release and the fan translations disagree.

The Norse realm of ice is spelled Niflheim. Oda’s katakana spells Nibelheim, which matches the spelling of the town in Final Fantasy VII, itself derived from Niflheim with an altered spelling. Translation commentator Artur of Library of Ohara has suggested Oda may have absorbed the game’s spelling rather than the mythological one. Oda has not addressed this, so it remains informed speculation.

Ragna Izuchi carries the clearest power measurement. It was first used against Nerona Imu, who blocked it with a giant demon head created through Omen.

Can Ragnir’s Ice Be Melted?

Loki states in Chapter 1179 that only Ragnir can melt ice created by Ragnir. The manga then tested that claim across eight chapters on a single target: Gunko, frozen in Chapter 1178.

Loki’s claim held against a direct attack from the King of the World in Chapter 1180 and was still holding three chapters later. The ice gives way in Chapter 1187. The cause has not been stated on-page, leaving open whether Ragnir willed it or whether the claim has a time limit.

Ragnir Chapter Ledger: Every Appearance That Matters

Ragnir’s story runs across roughly fifty chapters. The sequence in order:

Chapters after 1179 are not yet collected into a numbered volume.

What Happens in One Piece Chapter 1171

One Piece Chapter 1171 is titled “Ragnir.” It released on 19 January 2026 and is collected in Volume 115. The cover page request was “Zoro being given a cat ear headband by a cat,” submitted by PN Ura Nekoko.

The chapter closes the Harald flashback. After reluctantly killing his father, Loki takes the surviving guards out to sea and asks Jarul, Gaban and Shanks to keep the truth of Harald’s death secret. That secret is why Elbaph spent years believing Loki killed his father in cold blood.

In the present, Hajrudin forgives Loki for the circumstances of Harald’s death and releases him, while stating that he has not forgiven the rest of Loki’s crimes. That distinction decides where the character sits going forward.

A Draugr monster created by Killingham then drops from the Sun World into the Underworld. Loki treats it as a warm-up, and Luffy climbs onto his shoulder to watch him fight. On pages 16 and 17, Loki strikes with Niflheim and the creature is encased in ice on impact.

What Is Still Unconfirmed About Ragnir

• Ragnir’s upper limit: The hammer has not visibly been pushed to a maximum, so its ceiling is unknown.
• How the fruit and the spirit relate: The fruit was eaten by the hammer, and Elbaph legend separately holds that Ratatoskr’s spirit inhabited Ragnir after the Warrior God died. Whether these are the same event has not been spelled out.
• Whether Ragnir can revoke Loki’s claim: The worthiness grant is established. Withdrawal has never been tested on-page.
• What melted Gunko’s ice in Chapter 1187: The melt happens. The cause is not stated.
• The Warrior God’s identity: Named in legend only, with no face, era, or confirmed link to any known character.
• The squirrel design’s real-world basis: Ratatoskr has three dark stripes running from head to tail, which has prompted comparisons to the Siberian chipmunk. That is reader observation, not an authorial statement.

What Is Loki’s Devil Fruit?

Loki’s Devil Fruit is the Ryu Ryu no Mi, Model: Nidhoggr, a Mythical Zoan revealed by name in Chapter 1175, when Jarul explains it to Shanks and Gaban.

Three details define it. Whoever eats it becomes the largest dragon in existence. The dragon’s size scales with the eater, so an Ancient Giant draws far more from it than a human could. And nobody ate it for centuries not because it was too dangerous, but because Ragnir forbade it.

Loki consumed it fourteen years before the present-day events, immediately after taming Ragnir. Articles naming it the Hito Hito no Mi, Model: Ymir were written during the speculation window and never corrected. Any page still carrying that name predates January 2026.

Which Chapters To Read

Four chapters build the full picture, in this order: 1170 for the origin, 1171 for the first Niflheim, 1175 for the Ratatoskr legend, and 1182 for the Devil Fruit name. Everything else in the ledger above is setup or payoff for those four.

To estimate how long a catch-up read will take, our reading time calculator handles chapter batches, and the Reader Toolkit paces a full arc across several sittings.

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Final Verdict