Cavern Crasher

The Cavern Crasher is a Mystery Class dragon that appears in DreamWorks Dragons: Race to The Edge. It is a scavenger, and is known for pushing other dragons out of their homes and scavenging for their eggs, also making it a nest raider.

Physical Appearance
The Cavern Crasher is a black, lizard-like dragon that moves on all fours. Unlike most dragons, it has no wings. Cavern Crashers have yellow stripes that swathe across their eyes and similar bands around their limbs. They also have a hooked beak-liked mandible on their upper jaw and a thick, rounded tail. It have multiple bumps and craters on their back that secrete slime.

Abilities
This is large dragon unable to fly makes it up for great speed and burrowing as it great effective hunter.

Collapsible Skeleton
Because its entire skeletal structure is collapsible, the Cavern Crasher is able the squeeze through the smallest of crevices.

Fire Power
The Cavern Crasher is able to secrete flammable mucus from its body. It launches out the mucus from its tail or body onto other objects before setting them alight with its fire. The Cavern Crasher can also set its tongue on fire. It's able to shoot out long distance green flammable blast on its enemies.

Wall Crawler
The Cavern Crasher can walk on cavern walls and ceilings very fast, in part due to its sharp claws.

Endurance and Stamina
The endurance of the Cavern Crasher is proven from its body that is able to take many attacks, Fireworm Queen, a Monstrous Nightmare, a Night Fury, a Hideous Zippleback, a Gronckle and a Deadly Nadder. Even took a multiple large rocks on itself from Hookfang fire blast and from a double power of fire from Nightmare and Firequeen.

Its large size shows no lack of stamina as it must have fight against the Fire Queen for some time as it won the fight its stamina still very high to search his prey of the eggs of Fireworm Queen, able to fight against many of his enemies and still able to hunt no matter what in its away as Snotlout stated this dragon wouldn't give up to get his meals.

Speed and Agility
The Cavern Crasher is proven to be a very fast dragon, as it is able to climb walls fast enough to make the Dragon Riders believe that there are more than one in the dark caves. Its body is also shown to be quite agile enough to get around its surroundings.

Strength and Combat
The great strength of the Cavern Crasher is proven from its size that is able to take on a Fireworm Queen, which causes this dragon to flee from its territory to find help meaning it's really powerful opponent to its enemies.

Hunting
The Cavern Crasher uses its abilities to overcome larger or more numerous dragon opponents and ward them off so that it can eat their eggs.

Stealth
Since it crawls very fast, the Cavern Crasher has great stealth on its side to hunt its prey easily in dark caves.

Burrowing
The Crasher have shown to very fast digger as they are able to appear out of ground in high speed and are strong enough to burrow through terrain walls.

Senses
The Carven Crasher shown to have strong sense of hearing as it was able to hear baby Fireworms screaming.

Weakness
The dragon's defenses can be overcome by blasts of fire that are large or powerful enough to cook its mucus away, leaving it vulnerable. It may take time for it to rejuvenate it's mucus.

Trivia

 * The Cavern Crasher is the third confirmed flightless dragon, after the Speed Stinger and the Bewilderbeast and followed by the unknown dragon from Burning Midnight.
 * It is also the only one that can breathe fire.
 * The Cavern Crasher's ability to flatten its body is similar to that of the Raptortongue from the books.
 * The Cavern Crasher resembles a Fire salamander, a Gila monster, as well as a Snapping Turtle without a shell.
 * Though it is the third known flightless dragon, it is the first dragon to have no wings, followed by the currently unknown dragon from Burning Midnight.
 * The Cavern Crasher is the third dragon that can burrow.
 * The first is the Whispering Death (along with its subspecies the Screaming Death), and the second is the Snow Wraith.