Set 71731
Epic Battle Set - Zane vs. Nindroid
Retired Oct 2021Retail price$9.99What LEGO charged
Worth now$17.95Typical sealed asking price · 25 listings
Recently sold$13.49Only 2 sales so far — too few to lean on
vs retail+80%Worth more than it cost
Holding value
80% above its $10 retail price. Steady rather than spectacular.
How much is LEGO 71731 Epic Battle Set - Zane vs. Nindroid worth?
LEGO 71731 Epic Battle Set - Zane vs. Nindroid is worth about $17.95 sealed right now, based on 25 live sealed listings on eBay. That's 80% above its $9.99 retail price. It came out in 2021 with 66 pieces and 2 minifigures. It was retired in Oct 2021. Over the last 83 days its typical asking price has risen 6%, from $16.99 to $17.95. We last checked it 8 days ago.
Price history
Value history
Oct 19$1825 listings
- Lowest
- $15
- Highest
- $18
- Change
- +6%
- Asking vs retail
- +80%
26 observations · median asking · rechecked 8× daily
Should you buy it?
Up 80% on retail since retiring. A proper hold.
If you bought it to resell
Sells sealed for$18
Marketplace fees · 15.25%−$3
Payment processing · 2.9% + $0.30−$1
Shipping · est. from 66 pieces−$5
Reaches you$9
Pay no more than$7
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$13
2 sold in six months · $12–$15Sellers are asking 33% more than buyers actually paid. The $18 figure above is a ceiling; this is the floor to negotiate toward.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
Set details
- Set number
- 71731
- Theme
- Ninjago
- Released
- 2021
- Status
- Retired Oct 2021
- Pieces
- 66
- Minifigures
- 2
- Retail price
- $9.99
- Value per piece
- $0.272
- Price confidence
- high · 25 listings
- Last checked
- 8 days ago
Where these numbers come from
eBay25 live listingsThe asking price here — the median of what sellers want right now, $18. Last checked Oct 19.See the listings →BrickLink2 completed salesWhat it actually sold for — $13 across six months of real transactions. Last checked Oct 23.Open the price guide →Catalogue66 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $10.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.
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