18 June 2025

Review: 10375 How to Train Your Dragon – Toothless from LEGO® Icons

Posted by Tom Loftus
Toothless red tail printed lego tile surrounded by other pieces from the Lego How to Train your Dragon set

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Today we travel to the isle of Berk with a look at the long-awaited first LEGO® How to Train Your Dragon set: 10375 Toothless. I say long-awaited because the first film in the franchise was released in 2010, based upon the book from 2003.


Products in this article were gifted by The LEGO Group; the author's opinions are their own.
This article contains affiliate links to LEGO.com; we may get a small commission if you purchase.

10375 How to Train Your Dragon: Toothless

  • Release date: 1 July 2025, pre-order available now from the links below
  • Pieces: 784
Price, and link to pre-order: 

Other countries click here

Lego Icons 10375 How to Train Your Dragon: Toothless

 


Recoloured and printed pieces

There are no new moulds in the set so it's straight into the pieces coming in new colours:

6 lego pieces
  • 6x Brick Curved 1 x 1 in Black (6539387 | 7126)
  • 4x Brick Round Corner, Curved 2 x 2 x 2/3 Quarter Circle in Yellowish Green (6568029 | 5852)
  • 3x Tile 1 x 2 with Stud Notch in Dark Brown Right (6568024 | 5092) and Left (6568025 | 5091)
  • 1x Turntable 2 x 2 Plate, Base in Bright Pink (6568023 | 3680)
  • 10x Brick Round Corner, Curved 2 x 2 x 2/3 Quarter Circle in Black (6562635 | 5852)
  • 1x Cloud / Dust with 4 x 8 with Bars in Trans-Light Blue (6568026 | 6958)

There is no sticker sheet in set 10375; all decorations are achieved with printed elements:

4 printed lego parts
  • 3x Slope Curved 2 x 2 x 2/3 with Silver scales print in Black (6552681)
  • 2x Tile Round 2 x 2 Half Circle with White pupil print in Black (6552680)
  • 1x Tile 2 x 2 with Groove with Viking insignia print in Red (6552682)
  • 1x Slope Curved 2 x 2 with Stud Notches with fish face print in Bright Light Blue (6552683)
The red 2x2 tile will surely end up in many a Toothless MOC, while the black curved slopes might pair well with the 3x4 plates with printed cobblestones (88646pr0006) from the LEGO® Minifigures Dungeons and Dragons series; although, Toothless' silvery scales might be too shiny to blend seamlessly.

Rare parts

Unsurprisingly the selection of rare parts is predominantly monochrome, each appearing in 3 other sets or less:

6 lego parts, mostly black
  • 4x Brick Round Corner 3 x 3 x 1 No Studs in Black (6568030 | 65617)
  • 2x Slope Curved 1 x 4 x 1 2/3 No Studs in Black (6509390 | 3573)
  • 4x Brick Curved 1 x 2 x 1 2/3 with 1 Cutout in Black (6534031 | 5907)
  • 2x Brick Curved 1 x 2 x 1 2/3 with 1 Cutout in Reddish Brown (6551997 | 5907)
  • 6x Brick Curved 1 x 2 x 1 with Curved Top in Black (6542614 | 5841)
  • 16x Animal Body Part, Horn (Cattle) in Black (6536138 | 67258)

How to build your dragon

We start with a core of SNOT bricks, to which limbs, head and tail are added in sub-assemblies. It's  a similar method used by other large animal characters like 43249 Stitch (see our review of set 43249) and 43247 Young Simba (see our review of set 43247).


close up of construction of a leg joint in the Lego How to Train your Dragon set. The body has two ball joints set an angled distance apart, and the leg has mirroring cup joints

A mirrored pair of ball and socket joints set the angle of the front legs. The technique is a common sight in sets nowadays but is always satisfying to click together - especially when care is taken to close up gaps, as the row of cheese slopes do here.
the underside of the toothless Lego How to Train your Dragon model, showing the base of the body and 4 feet

As someone who frequently uses primary colours for tablescraps here on New E, I love the selection of filler colours used on the underside. This is also a good place to see all the stud direction changes used to keep things sturdy.


dense, A-shaped lego construction inside the head of the Lego Toothless model. One of the large eye subassemblies is attached to one angle of the A, the other lies on the table waiting to be applied. There are more sideways studs seen at the front side of the A

There's some fun geometry going on inside the head too. A variety of SNOT bricks and hinges position the eyes while a well placed 1x2 plate with rail and 2x2 tile with 45° cut closes up the gaps around the edges.

The completed model

Behold the Night Fury, the unholy offspring of lightning and death:

side, front and rear views of lego toothless set 10375

Hmmm. 

Even though this cheerful fella isn't the proportionally accurate Toothless I was hoping for, I still love him. Perhaps having Jaffa's excellent Toothless MOC displayed on my desk set me up for disappointment but there's still a lot to appreciate about this cutesy interpretation of Toothless – chiefly that adorable face!


rear closeup of lego toothless dragon showing the harness and spine

Around the back are some nice details like the tiled 'leather' saddle using 1x1 plates with bars dotted around to represent buckles. Even the spines are effective, despite being just a few cheese slopes.

 
4 views of Lego Toothless' mouth. 1: the official standard pose has its pink forked tongue sticking out. 2: same as 1 but with a transparent blue puff of smoke coming out. 3: a light blue brick-built lego fish is attached to the mouth. 4: with the pink forked tongue removed, the pink turntable piece below is revealed.

There's a few options for customisation within the mouth, in the form of a tasty fish and a plasma blast that can be swapped in and out with ease. The latter isn't especially convincing, but it works well enough as an optional extra. The dangly tongue is a fun feature but I wish it wasn't there by default. Removing it without modification also reveals the unsightly turntable beneath.


slight modification to Lego Toothless 10375 model; the tongue no longer sticks out and the wings and tail are angled differently.

Fortunately, a tongue-less Toothless is a simple fix thanks to a pair of pink 1x2 tiles that are used as filler nearby – no extra parts required! I'll probably keep my copy in this less-goofy configuration, along with minor adjustments to the wings and tail which I've rotated by 90°.

Closing thoughts

Paradoxically, the palpable cuteness is my main issue with the set. Since the 'real' Toothless is already a scary dragon made loveable, it's disappointing the build is a full-on caricature. Hopefully a less-stylised version with more articulation is on the cards, because I bet the LEGO® designers would nail it given all the fantastic dragon designs we've seen in recent years. 

Comparison of Lego sets 10375 Toothless and 43247 Young Simba

For a relatively small build, the price of US$69.99/ £59.99/ 69.99€/ AU$109.99 feels steep but is reasonably consistent with other sets of its kind like the aforementioned 43249 Stitch (same price and slightly less pieces as Toothless) and 43247 Young Simba (roughly twice the price and piece count). 

Overall, 10375 How to Train Your Dragon: Toothless will no doubt prove popular with fans who resonate with this brand of extreme character stylisation more than I do. Despite my conflicting opinions, it remains a thrill to see this theme explored by The LEGO Group at all. Here's hoping this is the first of many How to Train Your Dragon sets.

Bonus

Ordinarily I'd happily omit photos if I can't fit them into an article organically, but with this one I spent way too long nudging parts into place for it to go unseen. 

A pile of Lego pieces lying unconnected on a table but arranged in the shape of Toothless flying and breathing plasma

My dragon uses only the recolours and prints. Enjoy!
 

Pre-order on LEGO.com

Lego Icons 10375 How to Train Your Dragon: Toothless

  

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