101Leafy researched the games.
Ceanataur Stinger

Offensive Lance with great sharpness. Made from the hard shell of a Shogun.
| Class | Lance |
|---|---|
| Rarity | 4 |
| Attack | 391 |
| Slots | 1 |
| Price | 5,600z |
Upgrades
| Upgraded from | Blade Stinger |
|---|---|
| Upgrades into | Ceanataur Piercer |
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.