Light Fury

The Light Fury ​​​​​is a new medium-sized Strike Class dragon and a close relative of the Night Fury that will appear in How to Train Your Dragon: The Hidden World.

Development
"The Light Fury is an engine of change in our story, representing the call of the wild, which is key to Toothless' destiny."

- Dean DeBlois Director Dean DeBlois describes the Light Fury's role as a call to the wild for Toothless, who lacks many primal instincts regarding love and she will detach Toothless from human influence.

Physical Appearance
Light Furies greatly resemble Night Furies, but they are sleeker with lighter coloring and glimmering textures that include white, cream, and pink. They possess a long, single spine running down the center of their back and light blue eyes. They also have two pairs of ear-like appendages on the top of their heads and a pink-colored nose. Because it is a variant of the Night Fury and not the same species, there are some notable differences. Toothless, the only known Night Fury, has very large scales covering his appendages, legs, and snout. The Light Fury does not show these traits. In addition, the Night Fury has ridges going along the middle of its head, whereas the Light Fury does not. On the sides of its head, the Light Fury has two fewer appendages than the Night Fury, and the head of the Night Fury is slightly longer. The mouth of the Light Fury is shorter, and it doesn't stretch as far across its face as the mouth of the Night Fury. This last trait, however, might just have to do with the personal traits of Toothless and the Unnamed Light Fury, and it may not have anything to do with the species.

Unlike Night Furies, the wings of Light Furies are shorter with no sharp tips at their ends. They are glittery white in coloration and have strips of glittery light pink running down their wings.

The tail flukes of the Light Furies are triangular in shape, white in color and shorter than the Night Furies’. They have two smaller triangular flukes just above the main ones, these are hard to notice. But just like Night Furies, Light Furies are unable to fly if one of these tail flukes is destroyed.

Firepower
Light Furies are capable of firing explosive plasma blasts that resemble the ones produced by Night Furies. It is very likely that the plasma produced by the two closely related species share the same chemical components. In the same respect, Light Furies have an amount of control over when their flame blasts explode in the air.

Cloaking
Light Furies possess the ability of seemingly disappearing when they fly through the blasts of their fire. This is, in fact, a form of cloaking that occurs when their skin heats up, which causes their scales to have mirror-like qualities, allowing them to temporarily blend in with their surroundings.

Speed and Agility
Light Furies share the same speed and agility with that of the Night Furies, for one is able to swiftly swoop in and grab Hiccup as well as taking off rapidly upon seeing Hiccup and Astrid.

Strength
Light Furies are able to carry heavy objects, including humans and dragons that are larger than themselves.

Intelligence
Light Furies are very intelligent, as one is able to quickly fly away upon seeing a human and understanding a human's plea to save another dragon.

Behavior and Personality
Just like Night Furies, Light Furies are very intelligent and very elusive. They seem to be sociable towards other dragons, but they can be aggressive when humans interfere with their natural lifestyle.

Trivia

 * The fact that the Light Fury and Night Fury are related implies that dragons are members of 'families', like many animals in real life (I.E., crocodiles, alligators, and caimans are all related through the crocodilian family).
 * Coincidentally, the two species share the exact same stats.
 * The Light Fury is the second dragon that resembles the legendary Blue-Eyes White Dragon from the Yu-Gi-Oh! franchise owned by Seto Kaiba, with the first being the Snow Wraith.
 * Hiccup initially wanted to name the dragon species "Bright Fury", but he ultimately conceded to Astrid's choice of "Light Fury", for the second name sounds more suitable.