101Leafy researched the games.
Spiked Bat

Made from a hard Diablos Horn and studded with fangs. High attack power.
| Class | Sword |
|---|---|
| Rarity | 5 |
| Attack | 266 |
| Affinity | 10% |
| Slots | 1 |
| Price | 4,290z |
Upgrades
| Upgraded from | Studded Club |
|---|---|
| Upgrades into | Cursed Spirit |
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 702.