101Leafy researched the games.
Princess Rapier+

Made from Rathian materials this is the latest entry in the poison Sword line.
| Class | Sword |
|---|---|
| Rarity | 6 |
| Attack | 238 |
| Poison | 400 |
| Affinity | 5% |
| Slots | 2 |
| Price | 50,000z |
Upgrades
| Upgraded from | Princess Rapier |
|---|---|
| Upgrades into | Queen Rapier |
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.