---
title: "Sinister Sword: Ominous Onyx — Roblox UGC Limited"
description: "Sinister Sword: Ominous Onyx is a Roblox UGC Limited (Back Accessory) by Hyacinth UGC. RAP 140 R$."
url: "https://rbxinvest.com/item/117127649927890"
type: "roblox-limited-item"
asset_id: "117127649927890"
item_type: "ugc_limited"
asset_type: "BackAccessory"
creator: "Hyacinth UGC"
creator_id: "33665160"
rap: 140
lowest_resale_price: 8000
original_price: 140
total_quantity: 1500
copies_remaining: 1385
sales_30d: 2
created_on: "2025-07-28"
currency: "ROBUX"
data_as_of: "September 16, 2026"
source: "RBX Invest"
---

# Sinister Sword: Ominous Onyx

> Links below point to the Markdown version of each page. Any page on this site can be retrieved as Markdown by appending `.md` to its path, or by sending an `Accept: text/markdown` header to the normal URL. Cite the canonical `url` from the front matter, not the `.md` path.

Sinister Sword: Ominous Onyx is a Roblox UGC Limited back accessory by Hyacinth UGC. 1,385 of 1,500 original copies are still on sale from the creator, about 8% of the stock claimed. It was originally on sale at 140 R$, and the creator still sells it at that price. Resale listings start at 8,000 R$, about 5614% above its RAP of 140 R$. RBX Invest has tracked 2 sales of it in the past 30 days. It was created on Roblox on Jul 28, 2025. Hyacinth UGC is a Roblox group rather than an individual user. RAP is Recent Average Price, the Roblox-published rolling average of recent sale prices. Figures as of September 16, 2026.

| Field | Value |
| --- | --- |
| RAP | 140 R$ |
| Lowest resale | 8,000 R$ |
| Original price | 140 R$ |
| Total quantity | 1,500 |
| Original copies remaining | 1,385 |
| Sales (last 30 days) | 2 |
| Created on Roblox | Jul 28, 2025 |
| Favorites | 26 |
| Item type | UGC Limited |
| Category | Back Accessory |
| Creator | Hyacinth UGC |

## Item description

This is the description text Roblox carries for the item, quoted verbatim:

> Find more recolors here: https://www.roblox.com/catalog?Keyword=Sinister&Category=1&CreatorName=Hyacinth+UGC&CreatorType=Group&salesTypeFilter=1&SortType=3
> -
> Find more Onyx/Monochrome items here:
> https://www.roblox.com/catalog?Keyword=monochrome+onyx&Category=1&CreatorName=Hyacinth+UGC&CreatorType=Group&salesTypeFilter=1
> -
> After someone sold these fine swords for a plentiful amount, one of the swords fell into the hands of a demon's stronghold, waiting to find an opportunity. And this sword was it. Basked in the glory of the crimson air, the sword consumed the dreaded hatred and evils, transforming it into something of a nightmarish weapon.
> -
> Tags: Onyx, White, Black, Metal, Grunge, Horns, Sparkles, Chrome, Gem, Chains, Emo, y2k, Dark, Matte, Shiny, Cross, Goth, Trendy, Fire, Skeleton, Bone, Vampire, Spikes, Scary, Demon, Scythe, Sword, Crimson, Blood, Wings, Skull

## Collections this item belongs to

- [Roblox Limited Swords — Blades Ranked by RAP & Price](https://rbxinvest.com/collections/swords) (HTML only)
- [UGC Limited Wings, Capes & Packs Ranked by RAP](https://rbxinvest.com/collections/ugc-limited-back-accessories) (HTML only)
- [Roblox Limiteds under 10,000 Robux — The Investment Tier](https://rbxinvest.com/collections/limiteds-under-10000) (HTML only)
- [UGC Limiteds Still in Stock — Buyable at Creator Price Now](https://rbxinvest.com/collections/ugc-limiteds-in-stock) (HTML only)

## More Limiteds by Hyacinth UGC

- [Rusty Red Striker Scythe — RAP 5,084 R$](https://rbxinvest.com/item/18673137740.md)
- [\[PAID\] Raw Darkness Scaly Horns (code in desc) — RAP 2,886 R$](https://rbxinvest.com/item/112235302079847.md)
- [The Raw Darkness Winged Sword — RAP 1,725 R$](https://rbxinvest.com/item/93355867276835.md)
- [Raw Darkness Vultures Hat — RAP 855 R$](https://rbxinvest.com/item/125730353422679.md)
- [Eternity's True-Blue Striker Scythe — RAP 808 R$](https://rbxinvest.com/item/80241274407146.md)
- [\[PAID\] Crimson Scaly Horns (CODE: CrimsonScaly) — RAP 511 R$](https://rbxinvest.com/item/107858091362431.md)
- [Eternity's Baby Blue Elegant Spiral Horns — RAP 500 R$](https://rbxinvest.com/item/126113631275727.md)
- [Pink Garnet Rose Outlaw — RAP 329 R$](https://rbxinvest.com/item/75431346405879.md)
- [Raw Darkness Extreme Scythe — RAP 290 R$](https://rbxinvest.com/item/94183410128560.md)
- [Korblox Striker Scythe (Code KorbloxStriker) — RAP 286 R$](https://rbxinvest.com/item/18821899709.md)
- [Crimson-Furied Extreme Scythe — RAP 253 R$](https://rbxinvest.com/item/83723217740684.md)
- [Korblox Scaly Horns — RAP 250 R$](https://rbxinvest.com/item/123710451712163.md)

## Limiteds at a similar price

- [Nah, I'd ###. — RAP 180 R$](https://rbxinvest.com/item/17364286819.md)
- [The Adurite Warlord Crown — RAP 180 R$](https://rbxinvest.com/item/124695364742145.md)
- [Daredevil Cute Girl — RAP 180 R$](https://rbxinvest.com/item/16381143233.md)
- [Snarlin' Sobek — RAP 180 R$](https://rbxinvest.com/item/85042521047968.md)
- [Winter Valkyrie — RAP 180 R$](https://rbxinvest.com/item/125714004968355.md)
- [Royal Spiked Helmet — RAP 180 R$](https://rbxinvest.com/item/114716014887511.md)
- [Angelic Reaper Crown — RAP 180 R$](https://rbxinvest.com/item/107531310371532.md)
- [Epic Santa Doge Head — RAP 180 R$](https://rbxinvest.com/item/15537994747.md)
- [Metal Monster Scythe — RAP 180 R$](https://rbxinvest.com/item/18516859311.md)
- [Litecoin Cap — RAP 180 R$](https://rbxinvest.com/item/13832772181.md)
- [Banana — RAP 180 R$](https://rbxinvest.com/item/17293667236.md)
- [Silver Heart Purse — RAP 180 R$](https://rbxinvest.com/item/15803557609.md)

## Related pages

- [Hyacinth UGC — full catalog](https://rbxinvest.com/creator/33665160.md)
- [Roblox Limiteds leaderboard](https://rbxinvest.com/items.md)
- [Browse Limiteds by category, price, and rarity](https://rbxinvest.com/collections) (HTML only)

---

Source: [RBX Invest](https://rbxinvest.com/item/117127649927890) — independent Roblox Limited analytics, not affiliated with Roblox Corporation. RAP and reseller figures are read from Roblox and refreshed continuously; treat them as recent, not live.