101Leafy researched the games.
Shell Claw Lance

As hard as the shells used to make it. It's very good at slicing into weak spots.
| Class | Lance |
|---|---|
| Rarity | 9 |
| Attack | 529 |
| Defense | +40 |
| Slots | 2 |
| Price | 85,000z |
Upgrades
| Upgraded from | Scissor Cannon |
|---|---|
| Upgrades into | GiantHermitaurLance |
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 750.
Materials
PlumD.HermitrShl ×8, PlumD.HermitrClw ×2, Giant Blk Pearl ×3, Monster Broth ×10