Compare any two swords with live trade values and see the percentage gap. Never overpay again.
Values are a reference snapshot from Traderie (August 2026) and change with demand. A gap under 10% is a fair trade.
🔒 Private by design: every calculation runs in your browser. Your picks are never uploaded, stored, or sent anywhere — your trade data stays on your device.
Say you give a Dual Nebula Katana (trade value 340) and receive a Dual Cursed Blade (trade value 279).
The calculator works out the gap: (340 − 279) ÷ 279 × 100 = +21.9%.
Because the gap is over the 10% fair-trade line and points the wrong way, the result shows ⚠️ Overpaying (+21.9%) — graded as a Loss (L) for you.
Why: you hand over a sword worth 340 and get one worth 279, so you're giving away about 22% more value than you receive. Either ask the other player for an add (a matching item) or walk away. Flip the picks and the same math gives you a Win instead.
Top items by current trade value. Higher value generally means higher demand. Full ranked list below.
| Item | Value |
|---|---|
| Neo-Neko Katana | 528 |
| Dual Malice Blade | 362 |
| Dual Stardust Katana | 362 |
| Astral Bow | 360 |
| Dual Abyssal Blade | 359 |
| Dual Shadow Daggers | 356 |
| Dual Ether Blade | 354 |
| Dual Blossom Blade | 345 |
| Dual Aetherial Azure Reckoner | 344 |
| Dual Butterfly Blade | 343 |
| Dual Voltfire Blade | 342 |
| Dual Nebula Katana | 340 |
| Dual Crystal Greatblade | 337 |
| Dual Sakura Scythe | 333 |
| Vaporwave Crusher | 331 |
| Dual Stellar Revolver | 330 |
| Dual Twilight Scythes | 328 |
| Dual Yin Yang Scythe | 328 |
| Abyssal Blade | 325 |
| Dual Sinister Blade | 325 |
| Blossom Scythe | 324 |
| Serene Scythe | 322 |
| Dual Sakura Fan | 319 |
| Shadow Mirage | 314 |
| Abyssal Shield | 298 |
| Eclipse Blaster | 297 |
| Dual Blackhole Scythe | 289 |
| Dual Sakura Katana | 281 |
| Desert Claws | 280 |
| Dual Cursed Blade | 279 |
Showing top 30 of 48 tracked items. Source: Traderie Blade Ball value list, August 2026.
A free tool that compares the trade value of any two Blade Ball swords or items and tells you whether a trade is balanced. You enter what you give and what you get, and it shows the percentage gap so you can spot fair trades and avoid overpaying.
After Compare, the result shows the gap as a percentage. Under 10% is a Fair trade (F). If you receive more value than you give, it's a Win (W). If you give more value than you get, it's a Loss (L) — you're overpaying. Aim for W or F, skip L.
Values are a community snapshot from Traderie, last verified August 2026. Because demand can shift after game updates or new releases, always check the list close to the time you trade.
It covers all 48 tracked Blade Ball swords and items, from the top-ranked Neo-Neko Katana (528) down to Divine Blaster (240). If an item isn't in the dropdown, it isn't in the tracked list yet, so its value can't be graded.
No. The calculator runs entirely in your browser. The swords you pick are never uploaded, stored on a server, or shared — your trade data stays on your device and clears when you close the page.
A loss means the item you give is worth more than the item you receive — the gap is over 10%. For example, giving a 340-value sword for a 279-value one is a ~22% overpay. Ask for an add or walk away.