How much is Mystic Dark Onyx Blade worth? Price and value
As of October 18, 2026, Mystic Dark Onyx Blade is worth about 1,258 Robux, its Recent Average Price (RAP), and the cheapest copy for sale is priced at 999 Robux. Across the 100 owned copies, its estimated market value is 125,800 Robux.
That puts the cheapest copy 21% below RAP. RAP averages recent completed sales, so a listing under it means sellers are currently asking less than the item has been trading for.
How rare is Mystic Dark Onyx Blade?
Mystic Dark Onyx Blade is a UGC Limited Back Accessory with 100 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for 300 Robux.
At 1,258 Robux, RAP sits 4.2x the 300 Robux it first sold for.
Mystic Dark Onyx Blade has 2,207 favorites on the Roblox catalog.
Mystic Dark Onyx Blade sales history
RBX Invest has recorded 135 sales of Mystic Dark Onyx Blade across 35 trading days, from Jun 6, 2024 to Jan 31, 2026.
Sales here include copies bought from the creator’s original stock as well as resales between players. Free promotional claims are not counted.
Its highest daily average sale price was 3,000 Robux on Jan 26, 2026, and its lowest was 300 Robux on Jun 6, 2024.
By calendar year, its average sale price went from 359 Robux in 2024 to 1,916 Robux in 2026, up 434%.
| Month | Average sale price | Sales |
|---|---|---|
| Jan 2026 | 1,916 R$ | 6 |
| Dec 2025 | 747 R$ | 1 |
| Aug 2025 | 447 R$ | 4 |
| May 2025 | 449 R$ | 2 |
| Mar 2025 | 464 R$ | 3 |
| Feb 2025 | 503 R$ | 3 |
| Jan 2025 | 527 R$ | 2 |
| Dec 2024 | 545 R$ | 1 |
| Oct 2024 | 659 R$ | 3 |
| Sep 2024 | 735 R$ | 1 |
| Aug 2024 | 766 R$ | 3 |
| Jul 2024 | 903 R$ | 6 |
Did Mystic Dark Onyx Blade make money for release buyers?
Mystic Dark Onyx Blade sold out of its original stock on its first day of sales, Jun 6, 2024. Copies could be resold from Jul 6, 2024, once Roblox's 30-day resale lock ended.
For someone who bought at the original 300 Robux, the best return per day held came from reselling about 38 days after release, when copies were selling for around 899 Robux. That works out to roughly 150 Robux profit per copy after Roblox's cut.
Holding longer paid more in total: the most profitable point in its first year came 42 days after release, at about 160 Robux per copy.
About Mystic Dark Onyx Blade
The Mystic Dark Onyx Blade, crafted from the darkest onyx, slices effortlessly through shadows.
How to get Mystic Dark Onyx Blade
Mystic Dark Onyx Blade is no longer sold by the creator, so the way to get it is to buy a copy from a reseller on Roblox. The cheapest is listed at 999 Robux.
Mystic Dark Onyx Blade is Roblox asset ID 17758043056. It was published by Avento Store. On RBX Invest it sits in the UGC Limited Back Accessories, Limiteds under 1,000 Copies, Limiteds under 1,000 R$, Limiteds under 10,000 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.