101Leafy researched the games.
Wing Bow I

The Hypnocatrice wings add Sleep Add ability, knocking prey out like a light.
| Class | Bow |
|---|---|
| Rarity | 6 |
| Attack | 228 |
| Slots | 1 |
| Price | 11,100z |
Upgrades
| Upgrades into | Wing Bow II |
|---|
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 798.
Materials
OrangeHypnoPelt ×4, Hypno Beak ×2, Carbalite Ore ×3, Hrd Monster Bone ×4