Set 71815
Kai's Source Dragon Battle
Retired Aug 2025Retail price$37.99What LEGO charged
Worth now$19.99Typical sealed asking price · 11 listings
Recently sold—No recent sales on file
vs retail−47%Worth less than shop price
No retail price on file
Worth $20 today, but without a retail price there's nothing to judge that against.
How much is LEGO 71815 Kai's Source Dragon Battle worth?
LEGO 71815 Kai's Source Dragon Battle is worth about $19.99 sealed right now, based on 11 live sealed listings on eBay. That's 47% below its $37.99 retail price. It came out in 2024 with 120 pieces and 4 minifigures. It was retired in Aug 2025. Over the last 89 days its typical asking price has risen 134%, from $8.55 to $19.99. We last checked it today.
Price history
Value history
Oct 27$2011 listings
- Lowest
- $6
- Highest
- $20
- Change
- +134%
- Asking vs retail
- -47%
27 observations · median asking · rechecked 8× daily
Should you buy it?
Retired 1 year ago and still under retail. The market has had its say on this one.
If you bought it to resell
Sells sealed for$20
Marketplace fees · 15.25%−$3
Payment processing · 2.9% + $0.30−$1
Shipping · est. from 120 pieces−$9
Reaches you$7
Pay no more than$5
For a 30% return at your costs. Change them and every figure on the site follows.
Set details
- Set number
- 71815
- Theme
- Ninjago
- Released
- 2024
- Status
- Retired Aug 2025
- Pieces
- 120
- Minifigures
- 4
- Retail price
- $37.99
- Value per piece
- $0.167
- Price confidence
- medium · 11 listings
- Last checked
- today
Where these numbers come from
eBay11 live listingsThe asking price here — the median of what sellers want right now, $20. Last checked Oct 27.See the listings →BrickLinkPrice guideNo completed sales recorded for this one yet. Last checked Oct 24.Open the price guide →Catalogue120 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $38.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More Ninjago sets from around 2024
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