LEGO Harley Quinn™ Cannonball Attack 70921-1
LEGO Harley Quinn™ Cannonball Attack (70921-1) is worth about $168 on the secondary market today, against a $50 retail price. It has 425 pieces and was released in 2018. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
Dodge Harley Quinn’s cannonball attacks!
- Set number
- 70921-1
- Year
- 2018
- Pieces
- 425
- Minifigures
- 4
- RRP
- $50
- Market value
- $168
- Used value
- $49
- Released
- 2018
- Retirement
- Retired in 2019
Minifigures in LEGO Harley Quinn™ Cannonball Attack
Harley Quinn™ Cannonball Attack value by year
From $57 in 2018 to $145 in 2026 so far: +154%. Its highest year was 2026, at $145.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $145 | +68.9% |
| 2025 | $86 | +11.0% |
| 2024 | $77 | +12.9% |
| 2023 | $69 | +20.3% |
| 2022 | $57 | +0.0% |
| 2021 | $57 | +0.0% |
| 2020 | $57 | +0.0% |
| 2019 | $57 | +0.0% |
| 2018 | $57 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 4 priced minifigures are worth about $83 together, roughly 50% of the set's value — high for sets with minifigures, so most of what you pay for is the figures (typically 24%).
Frequently asked questions
How much is LEGO Harley Quinn™ Cannonball Attack (70921-1) worth?
LEGO Harley Quinn™ Cannonball Attack is worth approximately $168 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Harley Quinn™ Cannonball Attack retired?
Yes — Harley Quinn™ Cannonball Attack (70921-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Harley Quinn™ Cannonball Attack gone up in value?
Yes. Harley Quinn™ Cannonball Attack launched at $50 and now trades around $168, an increase of 235.5%. See the price history chart for how it got there.
What is the price per piece for Harley Quinn™ Cannonball Attack?
At its $50 retail price across 425 pieces, Harley Quinn™ Cannonball Attack works out to about $0.118 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Harley Quinn™ Cannonball Attack a good investment?
Harley Quinn™ Cannonball Attack currently trades 235.5% above its $50 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Harley Quinn™ Cannonball Attack so expensive?
Harley Quinn™ Cannonball Attack was released in 2018 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.