NINJAGO®
Lloyd's Dragon Mech Battle Pack
from £8
£0.11/pc
🏆 All-time low
![Rontu the Master Dragon]()
NINJAGO®
#71842 · EAN 5702017815756
381 pieces · 4 minifigs · Released 2025
LEGO® NINJAGO® dragon toy playset with 4 minifigures
Sign in to save Sign in for price alerts
↓
Good time to buy
All-time low — the lowest price in 12 months
381
Pieces
4
Minifigs
2025
Year
≈ £0.09 per piece · 381 pieces
66
Heist
Great deal
Lowest in 6 months
Few sellers left
Compare prices
Prices at 2 retailers — updated daily. How we track these prices.
Retired Sets
Best price
● In stock
£35
T O'Neil Bricks
○ Out of stock
£37
Price history — last 90 days
Lowest price across listed retailers.
Lowest price
Specifications
Set #
71842
Theme
NINJAGO®
Pieces
381
Minifigs
4
Year
2025
Status
In production
All-time low
£35
Price per piece
£0.09
EAN
5702017815756
Cheapest NINJAGO® sets
NINJAGO®
Nya vs. Mutation Monster Spinner
from £8
£0.18/pc
NINJAGO®
Lloyd vs. Earth Monster Spinner
from £8
£0.17/pc
NINJAGO®
Zane's Battle Suit Mech
from £8
£0.10/pc
NINJAGO®
Kai's Motorcycle Speed Race
from £8
£0.11/pc
NINJAGO®
Kai's Ninja Race Car EVO
from £8
£0.10/pc
Rontu the Master Dragon (LEGO set 71842) is a LEGO NINJAGO® set with 381 pieces. Compare LEGO prices for it across retailers and check the full price history before you buy.
The best price for Rontu the Master Dragon right now is £35 across 2 retailers — matching the official LEGO RRP of .
The lowest daily price has held steady around £35 over the past month.
Brickheist tracks the price of Rontu the Master Dragon daily and keeps up to 12 months of price history. Right now it's at its all-time low of £35 — a great moment to buy.
Frequently asked questions
How much does Rontu the Master Dragon cost?
The cheapest tracked price for Rontu the Master Dragon is £35, compared across 2 retailers and updated every day on Brickheist.
What is the lowest price for Rontu the Master Dragon?
The all-time low we've recorded for Rontu the Master Dragon (set 71842) is £35. The 12-month price history is shown on this page so you can spot a genuine deal.
Where can I buy Rontu the Master Dragon the cheapest?
Brickheist compares Rontu the Master Dragon across LEGO retailers so you can buy at the lowest price. See the retailer table above for live prices, stock and shipping.
£35
at Retired Sets