LEGO Kai's Source Dragon Battle (71815-1)
The Kai's Source Dragon Battle (71815-1) is a LEGO Ninjago set that was released in December 2023 and retired in July 2025 with a shelf life of 1 year and 7 months 25 days.
This LEGO set has 120 pieces and had a RRP of $37.99 (£31.99 / 37.99€) which equates to a price per piece of 0.32c (0.27p / 0.32€). Since it retired it has gone down in value by -47.5% and now has a value of $19.96 based on average sale price over the last 6 months.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| May 24 | $44.39 | 1 |
| Jun 24 | $39.07 | 0 |
| Jul 24 | $33.74 | 1 |
| Aug 24 | $44.39 | 1 |
| Sep 24 | $44.39 | 0 |
| Oct 24 | $44.39 | 0 |
| Nov 24 | $44.39 | 0 |
| Dec 24 | $44.39 | 0 |
| Jan 25 | $42.62 | 1 |
| Feb 25 | $40.84 | 0 |
| Mar 25 | $39.07 | 0 |
| Apr 25 | $37.29 | 0 |
| May 25 | $35.51 | 0 |
| Jun 25 | $33.74 | 0 |
| Jul 25 | $31.96 | 0 |
| Aug 25 | $30.19 | 0 |
| Sep 25 | $28.41 | 0 |
| Oct 25 | $26.64 | 0 |
| Nov 25 | $26.64 | 1 |
Minifigures
This set contains 4 minifigures with a combined value of $22.32. None of the minifigures in this set are exclusive, meaning they all appear in other LEGO sets.
Monthly sales
We have recorded 5 sales of the Kai's Source Dragon Battle set since May 24. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.
Value breakdown
The current value of Kai's Source Dragon Battle is $19.96
The 4 minifigures in this set make up 112% of the total set value.
The Wyldfyre - Dark Red Tunic minifigure is the most valuable minifigure in this set who contributes 41% of the set value .
My collection
Set details
Name: Kai's Source Dragon Battle
Theme: Ninjago
Set number: 71815-1
Status: Retired
Retired for: 9 months
Pieces: 120
Minifigures: 4
Dec 6, 2023
Dec 6, 2023
Mar 1, 2024
Dec 6, 2023
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Shelf life: 1 year, 8 months
$37.99
£31.99
37.99€
0.317c
0.267p
0.317€
Set value
Confidence: Low
Current value: $19.96
Increase from RRP: -47.5%
Yearly ROI: -47.5%
Minifigures
Set colors
The Kai's Source Dragon Battle has 120 pieces and is ranked 6986 on the list of biggest LEGO sets ever made.
The most common colour in this set is Black
The most common part in this set is Plate, Modified 1 x 2 with Open O Clip on Top
Stats
Frequently Asked Questions
How much is the LEGO Kai's Source Dragon Battle (71815-1) worth?
The LEGO Kai's Source Dragon Battle is currently worth $19.96 based on the average sale price over the last 6 months. The original retail price was $37.99.
How many pieces are in the LEGO Kai's Source Dragon Battle?
The LEGO Kai's Source Dragon Battle (71815-1) contains 120 pieces, making it the 6986th biggest LEGO set ever made.
Is the LEGO Kai's Source Dragon Battle retired?
Yes, the LEGO Kai's Source Dragon Battle has been retired. It was retired in July 2025 and is no longer available from LEGO directly. You can find it on the secondary market through sites like BrickLink and eBay.
How many minifigures are in the LEGO Kai's Source Dragon Battle?
The LEGO Kai's Source Dragon Battle contains 4 minifigures. The minifigures include: Wyldfyre - Dark Red Tunic, Kai - Climber Kai, Wolf Mask Guard, Wolf Mask Warrior.
When was the LEGO Kai's Source Dragon Battle released?
The LEGO Kai's Source Dragon Battle (71815-1) was released in December 2023 as part of the Ninjago theme.
Is the LEGO Kai's Source Dragon Battle a good investment?
Since retirement, the LEGO Kai's Source Dragon Battle has decreased in value by 47.5% from its original retail price.
Price data last updated: Nov 25
