The Elbaph arc in One Piece is delivering unimaginable extremes of power. Alongside the dominance of Loki and Imu, fans have been captivated recently by a weapon that seems to have a soul: the massive hammer Ragnir.
Remarkably, Ragnir is not just a lifeless metal block. It possesses the power of the Risu Risu no Mi, Model: Ratatoskr Devil Fruit. Let’s explore five fascinating facts about this unique Mythical Zoan ability!
1. When a giant hammer can move on its own

Ragnir is a colossal hammer, even larger than typical giants like Hajrudin. However, because Loki carries the blood of the ancient Giants, the hammer looks perfectly balanced in his hands. The intriguing part is that this hammer has consumed the Risu Risu no Mi, allowing it to transform into a squirrel.
Don’t be fooled by the seemingly cute appearance of the squirrel. Even in its transformed state, Ratatoskr remains enormous, standing tall alongside Loki’s towering figure.
2. The legend of Ratatoskr in Elbaph

The warrior land of Elbaph holds a legend about an ancient War God who wielded the hammer Ragnir, accompanied by an ice squirrel named Ratatoskr in a battle against the Sun God. After the god’s fall, Ratatoskr is said to have taken refuge inside its master’s weapon.
This detail gains credibility in chapter 1182, when Imu, who has lived since before the Void Century, remarks upon seeing the hammer: “So you still live as before, waiting for a new master.” This suggests Ratatoskr and Ragnir are two separate entities from a distant past.
3. A close bond with the dragon Niddhoggr

In Norse mythology, Ratatoskr is a squirrel that runs up and down the world tree Yggdrasil to deliver messages to the dragon Niddhoggr. Oda cleverly incorporated this by making Ratatoskr Loki’s companion, who currently wields Niddhoggr’s power. The pairing of the mythical squirrel and the dark dragon creates a devastating duo, perfectly reflecting their mythological relationship in One Piece’s Final Saga.
4. The power to control ice

While Niddhoggr grants Loki the power of lightning, Ratatoskr represents ice. This squirrel can freeze opponents into eternal blocks of ice. The most terrifying aspect is that the ice will never melt unless Ragnir or its master wills it. Having control over both lightning and ice elements makes Loki one of the toughest adversaries.
5. A Devil Fruit weapon: A major mystery of Mythical Zoan

Ragnir joins the rare list of inanimate objects with Mythical Zoan powers, similar to Figarland Shamrock’s Cerberus sword. However, there is a key difference: Ragnir is explicitly said to have “eaten” the Risu Risu no Mi, while Shamrock’s sword and the Five Elders (Gorosei) are directly named after monsters (Bakotsu, Fengxi, Itsumade) without the Devil Fruit prefix. This raises the question: do the Five Elders’ powers truly come from Devil Fruits, or are they blessings granted directly by Imu’s dark power?