101Leafy researched the games.
Bone Katana "Wolf"

Improved Long Sword built on a bone base. Top edge is covered in monster fangs.
| Class | Long Sword |
|---|---|
| Rarity | 1 |
| Attack | 528 |
| Slots | 0 |
| Price | 1,750z |
Upgrades
| Upgraded from | Bone Blade+ |
|---|---|
| Upgrades into | Bone Katana "Shark" |
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 690.
Materials
Velocidrome Hide ×2, Sm Monster Bone ×4, Machalite Ore ×3, Giadrome Claw ×2