101Leafy researched the games.
Barbaroi Tusk

Improved Bone Lance. Treasured by the border dwelling hunters.
| Class | Lance |
|---|---|
| Rarity | 2 |
| Attack | 322 |
| Slots | 0 |
| Price | 3,100z |
Upgrades
| Upgraded from | Long Tusk |
|---|---|
| Upgrades into | Ogre Tusk, Incessant Raven |
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 748.
Materials
Iodrome Skull ×1, Ioprey Hide ×10, Lg Monster Bone ×7, Demondrug ×5