101Leafy researched the games.
Diablos Horn Bow II

Crafted from twisted horns. Mastery allows for fine adjustments in aiming.
| Class | Bow |
|---|---|
| Rarity | 6 |
| Attack | 276 |
| Affinity | 10% |
| Defense | +20 |
| Slots | 1 |
| Table price | 25,700z |
Upgrades
| Upgraded from | Diablos Horn Bow I |
|---|---|
| Upgrades into | Gale Horn Bow |
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 800.