How to Train Your Dragon Wiki
How to Train Your Dragon Wiki

Rumblehorns shoot long-ranged fire missiles which explode on impact. They can find anything on scent for miles away, even with just a weak scent from a helmet. [src]

The Rumblehorn is a medium-sized Tracker Class dragon that first appeared in How to Train Your Dragon 2.

Official Description

A Rumblehorn's nose knows! From the Tracker Class, it can follow the faintest scent anywhere. There is nowhere to hide from this Dragon!
When a Rumblehorn doesn't want to move, it doesn't move... but when a Rumblehorn makes a charge, opponents clear out of the way!
  Dragons: Rise of Berk  
The daring Vikings willing to bond with the Rumblehorn, will need to be ready to explore all the corners of the archipelago as this dragon enjoys being led by its nose. Known as the bloodhound of dragons, its keen sense of detecting danger will lead its Viking to countless adventures.
  School of Dragons  


The Rumblehorn was inspired by a rhinoceros, a truffle pig, a rainbow dung beetle, a jackhammer, and a battle axe[1][2].

Early concept art depicted the Rumblehorn with a triple split jaw, much like the Catastrophic Quaken and the Snaptrapper. This was one of Character Designer Nico Marlet's signature designs.

Physical Appearance


Rumblehorn Egg.png

In Dragons: Rise of Berk, Rumblehorn eggs resemble beetle shells. They appear to have a slit that runs down vertically and separates the two halves of the eggs. They also have a few small indents on their bases.

Hatchling to Adult

The Rumblehorn has relatively large wings, a wide torso, and a tail with a club-like hammer on the tip. Its most notable feature is the heavily armed front half of its body with firm armor plates on the neck and a large lower jaw, a battle axe-shaped muzzle, which is always digging in the dirt, looking for scents, and two, very sharp, elongated horns resembling those of ceratopsian dinosaurs, but lacking a beak. The Rumblehorn has a very acute sense of smell and is determined to track down and find anything once it has picked up the scent. In total, they look like a mix of truffle pig, a rhinoceros, a battle axe, and a scarab beetle.

Titan Wing

Titan Wing in School of Dragons

Titan Wing in Dragons: Rise of Berk

Titan Wing Rumblehorns appear to have developed a shiny green armor. There are more plates to their armor and it appears harder. The horns on their head are sharper and longer, and their wings are cyan in color. Furthermore, their tail has grown more spiky tips.



Stoick begin to attack the Dragon Flyers.gif

Rumblehorns can shoot long-ranged, explosive fire "missiles" from their mouths that initially starts out as a white-hot fireball that quickly solidifies and turns to a warmer color before it ends up in a sooty, stony material when it hits its target.


As members of the Tracker Class, the Rumblehorn's powerful sense of smell allows them to find any Viking's scent from long distances, even if the material has been in the water for a long time. They can find anything based on scent alone. They can also use this to find prey when hunting. They can also use their sense of smell to sense when someone is coming, making them difficult to sneak up on.

Stoick uses Hiccup's helmet to track.gif

According to DreamWorks Dragons: To Berk and Beyond!, the only thing Rumblehorns cannot smell is dragonberries.

Strength and Combat

Skullcrusher uses its fire and head to ram a huge seastack.gif

Rumblehorns are tremendously strong dragons, for they are able to carry large Vikings and their weapons, as well as ramming down sea stacks and warships while flying at full speed as shown by Skullcrusher (though in Skullcrusher's case, his fireballs weakened the pillar first).

Judging by their body shape, it is quite possible for these dragons to charge at their opponents and impale them on their horns and to use their long, powerful tail as a club.


Rumblehorns appear to be incredibly intelligent, hiding from their enemies in bushes while outmaneuvering them at the same time. The Rumblehorn’s intelligence is elaborated when Skullcrusher attempted to chase Hiccup and the gang away from Dragon's Edge in order to save them from an incoming tidal wave.

Speed and Agility


For their body size, Rumblehorns are known to have surprising speed and agility on land, and they use this to charge like rhinoceroses. As for flight, they are able to spin in the air with no difficulties at all. Their tails are flexible enough to swing all the way around to their heads.


As shown in the third film, Rumblehorns appear to have great traction on rough or slippery terrain as seen when a Rumblehorn chased Astrid and Hiccup through the Hidden World easily running over the smooth crystals while they slipped and slid.

Disaster Detecting

As shown by Skullcrusher, Rumblehorns are able to detect any disasters that will happen in the near future, as Skullcrusher was able to sense an oncoming tsunami before any other Viking or dragon on the island.


The Rumblehorn hides in the bushes.gif

Despite their large size, Rumblehorns are able to move silently. Their heavy body is able to hide in bushes in order to blend in with their green scales.

According to Eret in To Berk and Beyond!, Rumblehorns will fire a blast in the air before flying right through it. This will temporarily burn off their own scent and make them impossible for other dragons to track.

Endurance and Stamina

Skullcrusher resists the huge fireball sent by Krogan's Singetail .gif

As shown by Skullcrusher, Rumblehorns are able to take a shot from a Singetail and fall from a high altitude to the ground and still get back up easily. They also have a large amount of stamina, as Rumblehorns have shown the ability to run at high speeds to charge at their enemies and fly farther distances than many other dragons.

Dragon Communication

Rumblehorns are able to scare other dragons into the air by either roaring or pounding the ground with their heads.


Rumblehorns are also susceptible to Deathgripper venom, with one vial being enough to subdue one into submission or knock them unconscious.gif

Like most other dragons, Rumblehorns are also susceptible to Deathgripper venom, with one vial being enough to subdue one into submission or knock them unconscious.


According to Eret in To Berk and Beyond!, Rumblehorns cannot smell Dragonberry juice. Applying to oneself will mask the scent and make the person untraceable to a Rumblehorn.


Training a Rumblehorn can be difficult if the dragon already has its mind set on something else, as they can be extremely stubborn and don't enjoy being told what to do. Even so, if you show the Rumblehorn that you and it are on the same path or alignment, it will quickly bond with you, when given the respect it deserves.

Behavior and Personality

Rumblehorns may have tough hides, but they still require a gentle touch. [src]

Rumblehorns always have their snouts to the ground, sniffing around for something edible. They can be aggressive, but they are friendly towards their riders. Their food of choice is unknown, but it is known that they are carnivorous. They are also highly intelligent and determined. They run like rhinoceroses. As shown by the still wild Skullcrusher, Rumblehorns can be very caring and protective of those who are in danger, as seen when Skullcrusher tried to warn everyone of a tidal wave heading towards Dragon's Edge. Rumblehorns appear to be solitary and elusive creatures that are rarely seen due to their keen sense of smell.

Rumblehorns are getting ready to sleep, they singe the ground with their fiery breath.gif

As shown by Skullcrusher in "Last Auction Heroes", sometimes when Rumblehorns are getting ready to sleep, they singe the ground with their fiery breath, while walking in a circle, much as Night Furies do before laying down.

Comparative Statistics


Dragons: Race to the Edge

Season 1

Main article: Skullcrusher

Hiccup and the gang face a strange new dragon that has been targeting native dragons during the events of "Crushing It", and it destroying Dragon's Edge. Hiccup named it the Rumblehorn. They get Gobber to build a fortress, but to no avail. Eventually, Hiccup allows his father to help them get rid of the rogue Rumblehorn, but it always outsmarts them. Back at the Edge, it attempted to attack Gobber, and Toothless was told to shoot him down. Sensing that something was not right, Stoick tamed the Rumblehorn and brought the gang to the sea. Hiccup then realized that a large wave strong enough to destroy the Edge was heading their way, and the Rumblehorn was trying to chase them away from the island in order to save them. Eventually, they worked together to surround the island with Gobber's fortress and the Rumblehorn, together with Stoick, collapsed a sea stack just in time to stop the wave. Stoick then keeps the Rumblehorn as Thornado's replacement and calls him Skullcrusher. This discovery allowed the Dragon Riders to create the Tracker Class.

Season 5

Main article: Drago's Rumblehorn
Main article: Krogan's Rumblehorn

In a flashback shown in "The Wings of War, Part 1", Stoick saw Drago Bludvist and Krogan riding Rumblehorns after burning down the hall where a gathering between tribe chiefs took place.

How to Train Your Dragon: The Hidden World

A captive purple Rumblehorn charges at Grimmel and the Warlords once it freed itself from its bonds. Grimmel swiftly subdues the dragon with his crossbow.

Rumblehorns were among the myriad of dragons that reside in the Hidden World who bowed down in front of Toothless and the Unnamed Light Fury, showing respect for their Alpha.

Hiccup and Astrid inadvertently roused up a sleeping Rumblehorn, who then roared at the intruders to alert all the other dragons. The Rumblehorn chased the humans on foot until Toothless and Stormfly grabbed the two before flying them out from the Hidden World.


ROB-Rumblehorn Stats Ad.png

Dragons: Rise of Berk

The Rumblehorn, along with its Titan Wing form and the individuals Skullcrusher and Seedling Rumblehorn, a subject of the Foreverwing, were made available in this game. Later, other characters such as Poise the Vast, Grimtorn, and Rhineblow were also added to the game.

School of Dragons

The Rumblehorn in this game has an exclusive chest available too.

Dragons: Titan Uprising

Several Rumblehorn individuals, like Flank-Tanker, Arctic Rumblehorns, the Valiant Scarbearer, Robust Rumblehorns, and the Son of Skullcrusher, and hybrids, like the Brooding Boltstamper, appear in this game.


  • Asterisk-Transparent.pngThe official measurements of the Rumblehorn, as released by DreamWorks Animation are 11 feet 1/2 inches (3.36 meters) in length, and 30 feet (9.14 meters) in wingspan.
  • The Rumblehorn has mild resemblance with the Eight-Legged Battlegore from the books.
  • As seen in How to Train Your Dragon: The Hidden World, the Rumblehorn is shown to be able to independently move and rattle the armored plates on its neck region.
    • Rumblehorns were also shown to be able to stand and walk on two legs in the film, but prefer to walk or run on all four legs, much like a bear.
  • The statistic for a Rumblehorn's firepower differs throughout the Franchise: according to "To Berk and Beyond", the statistic is 22, whilst Dragonpedia states that it is 11. Given the Rumblehorn's demonstrated firepower and the given firepower of other Tracker Class dragons, 22 seems to be the more likely option.
  • Rumblehorns made an appearance in the trailer for Minecraft's How to Train Your Dragon DLC, and have been put into the DLC as a blocky, tamable, ridable dragon


Rumblehorn uses Creative Commons Licensed content from the Rise of Berk Wiki page Rumblehorn. The list of authors can be found on the page revision history (view authors). ROBWiki Logo.png
Rumblehorn uses Creative Commons Licensed content from the Dreamworks School of Dragons Wiki page Rumblehorn. The list of authors can be found on the page revision history (view authors). SODWikiLogo.png

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