Kai's Source Dragon Battle

Kai's Source Dragon Battle (71815-1) is a set in the Ninjago theme, released in 2024. It has 102 pieces and 4 minifigures.

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Number:71815-1
Released:March 2024
Pieces:102
Box size:26.2 × 19.1 × 6.1 cm
Theme:Ninjago

Box size and weight as measured by Brickset.

In numbers

Over the last 30 days the lowest shop price recorded for this set was 38.44 USD, taken from 30 days with a price on record.

Since 10/7/2026 the lowest shop price has fallen from 39.06 USD to 38.44 USD, by 2 % (based on 30 days with a price on record).

LEGO planned to retire this set in July 2025.

Product details

Number: 71815-1
Name: Kai's Source Dragon Battle
Theme: Ninjago
Released: March 2024
Launched: March 2024
Retired: August 2025 in the United States
Pieces: 102
Minifigures: 4
RRP: ≈ 35.11 USD (49.99 CAD) (Canada)≈ 42.64 USD (37.99 EUR) (Germany)≈ 42.23 USD (31.99 GBP) (United Kingdom)37.99 USD (United States)
Price per piece: ≈ 0.344 USD (0.490 CAD) (Canada)≈ 0.418 USD (0.372 EUR) (Germany)≈ 0.414 USD (0.314 GBP) (United Kingdom)0.372 USD (United States)
Best price (30 days): 38.44 USD
Price per piece (best offer): 0.377 USD
Barcodes from shop data, not confirmed: UPC-A 673419389815

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

BrickLink market data

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Pricing

Best price ever≈ 38.44 USD (34.39 EUR) Advertising Sealed · gross · idee+spiel · seen 11/3/2026

Current best offer≈ 38.44 USD (34.39 EUR) Advertising Sealed · gross · idee+spiel · seen 11/3/2026

Price history

Lowest shop price now38.44 USD
Lowest ever 38.44 USD

Each day's lowest price among the shops' current offers, including VAT. A price in another currency is converted at the ECB reference rate of its day.

Monthly lows as a table

Month	Lowest price
November 2026	38.44 USD
October 2026	38.90 USD

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Price statistics by condition

Nobody has sold this set recently.

Sources idee+spiel: 41 · OTTO: 12

Latest price from each shop

Sorted: lowest price first Show highest first

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idee+spiel Sealed · gross · seen 11/3/2026

≈ 38.44 USD (34.39 EUR)

Go to shop

OTTO Sealed · gross · seen 11/3/2026

≈ 57.91 USD (51.80 EUR)

Go to shop

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Where these prices come from

On eBay

The cheapest eBay listings we saw in the last seven days. They are sellers' asking prices, so they are not in the shop price list or the best offer.

We have not seen a current eBay listing for this set.

Recommended retail price

What LEGO published as the recommended retail price, market by market, in that market's own currency. No market's price is ever derived from another's.

Canada ≈ 35.11 USD (49.99 CAD) unknown tax basis Available 3/1/2024 to 8/8/2025.Recorded by BrickDb since 10/2/2026

Germany ≈ 42.64 USD (37.99 EUR) gross Available 12/6/2023 to 6/2/2025.Recorded by BrickDb since 10/2/2026

United Kingdom ≈ 42.23 USD (31.99 GBP) gross Available 12/6/2023 to 7/5/2025.Recorded by BrickDb since 10/2/2026

United States 37.99 USD net Available 12/6/2023 to 8/8/2025.Recorded by BrickDb since 10/2/2026

≈ marks a price converted into this currency at the ECB reference rate of its own date — a reference indication, not a tradeable rate. The price as observed follows in brackets.

Building instructions

All building instructions for this set on LEGO.com

Parts in this set

64 inventory lines

Catalogue image of the part Bar Holder with Clip

Bar Holder with Clip 11090· Black

×2

Catalogue image of the part Brick Curved 2 x 1 No Studs [1/2 Bow]

Brick Curved 2 x 1 No Studs [1/2 Bow] 11477· Black

×1

Catalogue image of the part Plate Special 1 x 2 5.9mm Centre Side Towball Socket

Plate Special 1 x 2 5.9mm Centre Side Towball Socket 14704· Dark Bluish Gray

×1

Catalogue image of the part Tile Round 2 x 2 with Bottom Stud Holder

Tile Round 2 x 2 with Bottom Stud Holder 14769· Red

×4

Catalogue image of the part Brick Curved 2 x 2 x 2/3

Brick Curved 2 x 2 x 2/3 15068· Dark Tan

×2

Brick Curved 2 x 2 x 2/3 15068· Sand Blue

×1

Catalogue image of the part Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] 21459· Pearl Gold

×2

Catalogue image of the part Wheel 37mm D. x 22mm, Pin Hole

Wheel 37mm D. x 22mm, Pin Hole 2148· Black

×2

Catalogue image of the part Plant, Leaves 4 x 3

Plant, Leaves 4 x 3 2423· Magenta

×2

Catalogue image of the part Brick Curved 3 x 2 No Studs

Brick Curved 3 x 2 No Studs 24309· Red

×1

Catalogue image of the part Tile Special 1 x 2 with Handle

Tile Special 1 x 2 with Handle 2432· Dark Blue

×1

Catalogue image of the part Plate Special 2 x 3 with Rocks

Plate Special 2 x 3 with Rocks 27261· Black

×4

Brick 1 x 2 3004· Dark Blue

×1

Plate 2 x 4 3020· Red

×3

Plate 2 x 3 3021· Black

×1

Plate 2 x 3 3021· Dark Red

×2

4 minifigures

Minifigures in this set

Catalogue image of the minifigure Kai - Heavy Shoulder Guards

Same theme, piece count within 15 %

Similar sets

Catalogue image of Jay's Dragon Mech Fight

Kai's Source Dragon Battle

In numbers

Product details

BrickLink market data

Can I build this?

Pricing

Price history

Latest price from each shop

On eBay

Recommended retail price

Building instructions

Parts in this set

Minifigures in this set

Kai - Heavy Shoulder Guards

Wolf Mask Guard

Wolf Mask Warrior

Wyldfyre, Shoulder Guard

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