101Leafy researched the games.
Naag Serpentblade

Poisoned Lance made from Remobras material. Made to cause pain and suffering.
| Class | Lance |
|---|---|
| Rarity | 4 |
| Attack | 322 |
| Poison | 380 |
| Affinity | 5% |
| Slots | 0 |
| Price | 5,600z |
Upgrades
| Upgraded from | Rampart |
|---|---|
| Upgrades into | Devta Serpentblade |
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 746.
Materials
Remobra Skull ×2, Remobra Skin ×8, Poison Sac ×10, Machalite Ore ×15