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Retiring soonAges 6+

Nya vs. Mutation Monster Spinner (71849)

Name: Nya vs. Mutation Monster Spinner
Brand: LEGO
SKU: 71849

LEGO.com4.7(4)49 pieces · 18.3p each

Available From

No current price from any retailer we track. LEGO.com lists it at £8.99.

Also available

Amazon UK

Marketplace sellers only

Argos

Not re-checked since 13 May 2026

£9.00

LEGO.comOfficial

Sets the RRP everything else is measured against

£8.99

Buy

It was £7.99 at Zavvi in May. Checked 6 times over 110 days · average £8.83.

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£7.99

at Zavvi · May 2026

Average Price (12mo)

£8.83

Current vs Average

-9.5%

Below average

Best Month to Buy

May

Value Score

3.0/10

Price-per-piece vs theme avg

The lowest price we've recorded for Nya vs. Mutation Monster Spinner is £7.99 at Zavvi in May 2026. The current price is 9.5% below the 12-month average of £8.83. Historically, May tends to offer the best prices for this set.

Price History & Buying Verdict

VerdictBuy now

•This set is marked as retiring soon by LEGO — once production stops, prices on the secondary market typically rise significantly.
•Price-per-piece is high for the NINJAGO® theme (value score 3.0/10) — collectors and display-piece buyers will value it more than piece-count buyers.

We've been tracking the price of LEGO NINJAGO® Nya vs. Mutation Monster Spinner (49 pieces) for 110 days, recording 6 data points across LEGO.com and major UK retailers. Over that period the price has dropped 1 time below previous levels, with the lowest price ever recorded being £7.99 at Zavvi in May 2026.

The 12-month average sale price for set 71849 works out to £8.83 — that's 1.8% below the LEGO RRP of £8.99. The highest price we recorded across our tracked retailers was £9.00, giving a range of about £1.01 between the cheapest and most expensive observation.

Zavvi has run the most price drops on this set in the period we've tracked, making it the retailer most worth watching for short-term deals. Historically, May has produced the lowest average prices for Nya vs. Mutation Monster Spinner, so if you're not in a hurry it's worth bookmarking the page closer to that window.

Want to see how LEGO Nya vs. Mutation Monster Spinner (set 71849) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

Nya vs. Mutation Monster Spinner (71849) is a LEGO NINJAGO® set with 49 pieces, with an RRP of £8.99. With a value score of 3.0/10, this set is priced higher per piece than most NINJAGO® sets.

SpecificationsBoys and girls ages 6 and up will love building this LEGO® NINJAGO® Nya vs. Mutation Monster Spinner (71849) battle toy and recreating scenes from season 4 of the NINJAGO Dragons Rising TV show. Once it’s built, kids push the launcher’s button to unleash the spinner toy into a quick spin and watch to see if the 2 elemental power parts fly off it when it hits its target. This great value small LEGO set comes with 2 minifigures: Nya with a glaive weapon accessory and the villainous Mutation Monster, who can ride inside the spinner toy. Kids enjoy countless hours of good vs. evil battles with these NINJAGO characters. The LEGO NINJAGO range of building sets and adventure toys includes detailed mechs, vehicles, dragons and temples so fans can role-play awesome ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 49 pieces.

Features

BATTLE TOY – Boys and girls ages 6 and up can play out scenes from season 4 of the NINJAGO® Dragons Rising TV show with this LEGO® NINJAGO Nya vs. Mutation Monster Spinner (71849) ninja toy
SPINNING TOY WITH FUN FEATURES – Kids push the launcher’s button to unleash the spinner toy into a quick spin and watch to see if the 2 elemental power parts fly off when it hits its target
2 NINJAGO® MINIFIGURES – This kids’ adventure toy comes with Nya and a villainous Mutation Monster who can ride inside the spinner so kids can play out action-packed good vs. evil battles
ACCESSORIES – Each NINJAGO® character minifigure has a weapon for enhanced play value: Nya comes with a glaive accessory and the Mutation Monster is armed with a set of claws
SMALL GIFT FOR KIDS – This great value small LEGO® set provides a fun build-and-play experience and is a ninja gift idea for kids with a passion for fantasy and adventure toys
MORE NINJA ADVENTURES – Discover other LEGO® NINJAGO® toys (sets sold separately) featuring detailed dragons, mechs, temples and vehicles
A UNIVERSE OF LEGO® NINJAGO® SETS – This extensive collection of kids’ toys lets ninja fans and children escape into an immersive fantasy world for imaginative play with their ninja heroes
DIMENSIONS – This 49-piece imagination toy features a spinner toy with a launcher and Mutation Monster minifigure, which together measure over 2.5 in. (6 cm) high, 4 in. (11 cm) long and 3.5 in. (9 cm) wide

Minifigures Included

2 figures

Minifigures in Nya vs. Mutation Monster Spinner. 2 of them appear in other sets we track, which can be a cheaper way to get the same figure.

Mutation Monster
4 parts
Also in 1 other set›
- Jay's Dragon Mech Fight71853 · £17.99 RRP
Nya
6 parts
Also in 1 other set›
- Zilvar and Grimtak the Dragon Beast71863 · £17.99 RRP

Minifigure data from Rebrickable.

Frequently Asked Questions about Nya vs. Mutation Monster Spinner

What is the best price for LEGO Nya vs. Mutation Monster Spinner (Set 71849)?

LEGO Nya vs. Mutation Monster Spinner (Set #71849) is currently priced at £8.99 on LEGO.com. We continuously monitor prices across multiple UK retailers to find you the best deals.

How many pieces are in LEGO set 71849?

LEGO Nya vs. Mutation Monster Spinner (Set #71849) contains 49 pieces. At the LEGO.com price of £8.99, that works out to approximately 18.3p per piece.

What age is LEGO Nya vs. Mutation Monster Spinner suitable for?

LEGO Nya vs. Mutation Monster Spinner (Set #71849) is recommended for ages 6+. This set is part of the LEGO NINJAGO® theme. View all NINJAGO® sets and deals.

Where can I find the building instructions for LEGO Nya vs. Mutation Monster Spinner?

You can download the official building instructions for LEGO Nya vs. Mutation Monster Spinner (Set #71849) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.

Where can I buy LEGO Nya vs. Mutation Monster Spinner in the UK?

LEGO Nya vs. Mutation Monster Spinner (Set #71849) is available from LEGO.com at £8.99. We're monitoring other UK retailers for availability. Check our recent price drops for updates.

What is the lowest price ever recorded for LEGO Nya vs. Mutation Monster Spinner?

The lowest price we've recorded for LEGO Nya vs. Mutation Monster Spinner (Set #71849) is £7.99 at Zavvi in May 2026. That's 11% off the LEGO RRP of £8.99. Track the latest movements on our LEGO price history page.

Is LEGO Nya vs. Mutation Monster Spinner being discontinued or retiring soon?

Yes — LEGO Nya vs. Mutation Monster Spinner is flagged as retiring soon by LEGO. Once production ends and remaining stock sells through, prices on the secondary market typically climb well above RRP. If this set is on your list, the safest window is now while retailers still have stock. Browse our list of retiring LEGO sets to see what else is on the way out.

Is LEGO Nya vs. Mutation Monster Spinner good value for money?

Comparing piece-count to price across the LEGO NINJAGO® theme, this set scores 3.0 / 10 for value. That works out to about 18.3p per piece. That sits below the NINJAGO® average — you're paying for design, licensing, or scale rather than sheer brick count. Display-piece and collector buyers usually still consider that fair. Compare against other contenders on our best-value LEGO sets page.