101Leafy researched the games.
Hidden Ones
Jet-black Dual Swords. They say every leader of a band of assassins has used these.
| Class | Dual Blades |
|---|---|
| Rarity | 7 |
| Attack | 266 |
| Affinity | 40% |
| Slots | 1 |
| Price | 80,000z |
Upgrades
| Upgraded from | Rex Slicers |
|---|---|
| Upgrades into | Ebony Wings |
Can also be made new at the smithy.
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 716.
Materials
NargaCuttingWing ×8, Narga Scale+ ×4, Narga Brain Stem ×1, Hrd Monster Bone ×4