101Leafy researched the games.
Deadly Poison

Upgraded serpent blade made with Ioprey materials. Contains poison Ioprey Fang.
| Class | Sword |
|---|---|
| Rarity | 4 |
| Attack | 168 |
| Poison | 360 |
| Slots | 1 |
| Price | 2,550z |
Upgrades
| Upgraded from | Hydra Bite |
|---|---|
| Upgrades into | Princess Rapier, Rouge Flames |
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 700.