After much anticipation, the official name of the Devil Fruit Loki possesses has finally been revealed: Ryu Ryu no Mi, Model: Niddhoggr. As fans predicted, this is no ordinary dragon but a mythological entity with destructive power.
Here are 5 shocking facts about Loki’s power you can’t miss.
1. Mythical Zoan type with weather control powers

The Ryu Ryu no Mi, Model: Niddhoggr is an extremely rare Mythical Zoan type. It not only grants the ability to transform into a massive black dragon but also lets the user manipulate natural elements.
In One Piece chapter 1175, Loki unleashes the Thorheim technique, releasing a powerful thunderous breath. As he soars, thunder roars and heavy snow falls with each wingbeat, just as Jarul describes: “Its breath is thunder, so immense it turns day into night when it flies.”
2. Originates from the “evil dragon” of Norse mythology

In Norse mythology, Niddhoggr is a dragon dwelling in the underworld Niflheim, gnawing on the roots of the world tree Yggdrasil and devouring the souls of the wicked. It symbolizes destruction and decay.
However, in One Piece, Eiichiro Oda cleverly twists this symbol of darkness to stand with Elbaph against tyranny, becoming the last hope for the land of warriors.
3. Absolute power reserved for ancient giant bloodline

This key detail explains why Loki is so formidable. According to Jarul, the dragon’s maximum size depends entirely on the host’s original body.
If a human eats it, the dragon form remains small. If a giant consumes it, the size grows. But only an ancient giant can unlock its full mythological power and size.
Loki is one of the rare descendants with ancient giant blood, perfectly suited to transform into the “largest dragon in the world.”
4. A “treasure” once sought by the legendary Rocks D. Xebec

Chapter 1156 reveals that the legendary Rocks D. Xebec once formed a pirate crew aiming to seize two powerful Devil Fruits, one of which was hidden in Elbaph.
Rocks coveted the power of Niddhoggr and targeted King Harald (Loki’s father). He knew only ancient giant blood could unlock its potential. This shows the Niddhoggr fruit is the key to Rocks’ plan to overthrow the world.
5. Recognition from the living weapon Ragnir

This Devil Fruit isn’t easy to claim. For generations, it has been fiercely guarded at Aurust Castle by Ragnir, a living weapon housing the spirit of the ice squirrel Ratatoskr. Ragnir can refuse anyone who tries to touch this treasure.
Only when Loki proved his strength and dominance did Ragnir accept him as the rightful master, becoming the weapon that fights alongside the king of Elbaph.