The rates are from the upgrade page on BianKO's own website (/guide/upgrade). The page isn't linked from the site's side menu, but it is live on BianKO's address and lists Accessory Compound Scroll with the tooltip "Compounds Accessories".
Accessory Compound rates
| Step | Chance | Chance with Trina | Coins |
|---|---|---|---|
| +0 → +1 | 55% | 82.5% | 100,000,000 |
| +1 → +2 | 50% | 75% | 200,000,000 |
| +2 → +3 | 50% | 75% | 300,000,000 |
A Trina takes +0→+1 from 55% to 82.5% and the next two steps from 50% to 75%, so it adds half of the base chance on every step. Even if every attempt lands, taking one piece from +0 to +3 costs 600 million coins (100 + 200 + 300 million), before any failed tries.
Which Trina: Accessory Trinas Piece or Trinas Piece
| Item | Price | Note |
|---|---|---|
| Accessory Trinas Piece | 100 AB | The Trina for accessories |
| Trinas Piece | 60 AB | The Trina column in the item upgrade tables |
| Shadow Piece | 60 AB | Doubles the Shozin craft chance (Ruler, Dragon Armor, Draki Pendant) |
Switching, War and DC Premium each come with one Trinas Piece, but no premium includes an Accessory Trinas Piece. Trinas Piece also shows up in the base drop of Atross (1402); no mob on the site drops Accessory Trinas Piece.
Where to get accessories to upgrade
| Source | What it gives | Note |
|---|---|---|
| Yellow Sand (9011), Pidama (9537), Worm (700) | +1 accessories: Ring of Courage/Life/Magic, Heros Valor, Legionnaire Band, String of Skulls, Cockatrices/Minotaurs/Lillimes/Leech Kings Earrings, Sash of Sorrows, Diamond Ring, Shio Tears, Imir Ring, Flame Ring | Group drop; Yellow Sand and Pidama were added as special bosses on 25 April 2025 |
| Isiloon (5551), Felankor (7035) | +1 accessories | Drops updated to "+1 accessory drop" on 25 April 2025 |
| Item rental (Stone of Warrior/Rogue/Mage/Priest) | +7 armor, +7 weapon and +0 accessories | Live since 28 April 2025; buy the stone at Sundires, put it in Shozin |
| Forgotten Accessory Box | Old and regular accessories (90 items) | No upgraded accessories |
| [BOSS] Rampage Orc (8809) | 45+ Old accessories | Group drop |
Source / rights
Image / usage information: (c) BianKO / ARTY. BianKO'nun kendi sitesinde ve forumunda yayımlanan tanıtım görseli (22 Eyl 2026 indirildi); kaynak sayfa bağlantısıyla gösterilir, sahiplik iddia edilmez. · Image source ↗
How it differs from item upgrades
- Weapons and armor cap at +8, accessories at +3.
- On items, Blessed Upgrade Scroll +6→+7 is 15% (30% with Trina) for 1,000,000 coins; on accessories even the first step is 100,000,000 coins.
- Items use Trinas Piece (60 AB), accessories use Accessory Trinas Piece (100 AB).
FAQ
How high can accessories go on BianKO?
+3. The Accessory Compound table on the upgrade page ends at +2→+3, and the launch post gives the same cap.
Where does Accessory Compound Scroll come from?
The site doesn't list it. The scroll isn't in the Power Up Store, the exchange lists or any mob drop.
Does a failed accessory upgrade burn the item?
The site doesn't say. The upgrade page only shows the chance, the chance with Trina and the coin cost.
What is the minimum coin cost for a +3 accessory?
600 million coins if all three steps succeed first time. Every failed attempt costs that step's fee again.
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