101Leafy researched the games.
Hi Twin Daggers

Seemingly normal Dual Blades, but sealed within is the spirit of ancient times.
| Class | Dual Blades |
|---|---|
| Rarity | 6 |
| Attack | 224 |
| Ice | 350 |
| Slots | 1 |
| Table price | 55,000z |
Upgrades
| Upgraded from | Weathered Blades |
|---|---|
| Upgrades into | Silhouette Sabers |
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.