Kai's Source Dragon Battle
LEGO 71815 · Ninjago · retail $37.99
Recently retired · Aug 2025
LEGO 71842 Rontu the Master Dragon
set number 71842 · Ninjago · released 2025 · retail $49.99
Recently retired · Jul 2026
Brickset lists LEGO 71842 Rontu the Master Dragon as recently retired (Jul 2026). Not enough verified complete-set listings to calculate a dependable current estimate. Prices below are calculated market estimates from active listings, not completed sales.
Complete-set valuation
Not enough verified complete-set listings to calculate a dependable current estimate. We only price complete sets, so parts, instruction manuals, minifigures and accessory listings never count toward these figures.
Figures are typical asking prices from active listing data, not completed sales.
Checked 2026-08-01 · lifecycle data from Brickset. Based on Brickset ownership data + live eBay supply — LEGO does not publish production figures.
Related Ninjago sets
Wolf Mask Shadow Dojo
LEGO 71813 · Ninjago · retail $119.99
Recently retired · Nov 2025
Tournament Battle Arena
LEGO 71818 · Ninjago · retail $49.99
Recently retired · Nov 2025
Young Dragon Riyu
LEGO 71810 · Ninjago · retail $15.99
Recently retired · Nov 2025
Dragonian Storm Village
LEGO 71841 · Ninjago · retail $39.99
Recently retired · Nov 2025
Ras and Arin's Super Storm Jet
LEGO 71833 · Ninjago · retail $49.99
Recently retired · Nov 2025
Dragon Stone Shrine
LEGO 71819 · Ninjago · retail $119.99
Recently retired · Nov 2025
Kai's Dragon Spinjitzu Spinner
LEGO 71823 · Ninjago · retail $9.99
Recently retired · Nov 2025