Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗

Ninjago · SET 71872

Ultra Dragon Battle

A large dragon and its opponents form a vertical battle scene.

Pieces: 2,178
Release year: 2026
Theme: Ninjago
Set number: 71872
LEGO recommended age: 12+
LEGO retail price · Italy: 199.99 €

View on LEGO Italy Official building instructions

Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 26 October 2026

Track your build →

Official English name verified at: LEGO English catalogue ↗ · Checked on 26 October 2026.

TIME TO BUILD

How long does it take to build Ultra Dragon Battle?

Active building time · one person

A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.

Editorial estimate · first build

Beginner

≈ 12 hSuggested range7 h – 19 h 15 min

Intermediate

≈ 8 hSuggested range4 h 45 min – 13 h

Experienced

≈ 5 h 30 minSuggested range3 h 15 min – 9 h

Based on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.

How we estimate times · sources and method

Editorial assessment of the first illustrated arrangement: A large dragon and its opponents form a vertical battle scene. The support incorporates characters and battle details rather than merely holding up the dragon. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks and subsequent play are excluded. No verified timed build: indicative values with substantial variation.

Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.

LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.

Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.

Build your own story.

Save this set to your collection, track your progress and share your building time.

Create a free account →

BEYOND THE BRICKS

Did you know?

The model, the history, the ideas

Inside the set

Wings as a backdrop

Green wings frame the body and greatly expand the model’s outline.

LEGO source

An action base

The support incorporates characters and battle details rather than merely holding up the dragon.

LEGO source

Beyond the set

The stories, places and inventions behind your build.

Claws could indicate rank

On a Qing robe examined by the Met, five-clawed dragons indicate membership of the imperial family. The number and placement of details carried specific meanings.

The Metropolitan Museum of Art

A hidden ninth dragon

The robe features nine dragons, one inside, hidden when worn. Even a ceremonial object can hold a detail intended to be discovered at close quarters.

The Metropolitan Museum of Art

Written by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.

BEYOND THE BRICKS

Keep the story going

Films, series, books and music connected to this model or its universe.

TV series

LEGO Ninjago: Masters of Spinjitzu

2011

Another adventure in the same universe, for before or after your build.

Find streaming services · Italy ↗

Title search on JustWatch: choose the result matching the title and year above.

Streaming: Italian catalogue. Check availability, languages and terms on the external service. Searches are labelled; book results may include different editions.

Suggest a work or report a wrong connection →

THE COMMUNITY’S EXPERIENCE

What was it like to build?

Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.

No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.

Building tips from the community

Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.

No approved tips yet.

SET THE MOOD

A soundtrack for your build

· Selected for the subject and atmosphere

From the energy of Mars to the distance of Neptune, the orchestra changes scale and colour. An imaginary voyage for space exploration: Holst’s planets are musical characters, not an astronomy lesson.

OUR PICK

Holst: The Planets

Charles Dutoit & Orchestre symphonique de Montréal

Orchestra and cosmic imagination

Spotify ↗Apple Music ↗

Your listening moodChoose a different soundtrack

A build to spread over several sessions: choose the more understated option when you want the instructions to take centre stage. The music does not set your pace.

Editorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →

Report a problem with this set →