101Leafy researched the games.
Bone Scythe+

Dual Scythes with elemental potential but poor Defense. Sharpness is also low.
| Class | Dual Blades |
|---|---|
| Rarity | 2 |
| Attack | 126 |
| Slots | 1 |
| Price | 880z |
Upgrades
| Upgraded from | Bone Kris+ |
|---|---|
| Upgrades into | Chief Scythe |
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 708.