101Leafy researched the games.
Chick Decapitator

Bears a splendid resemblance to a Kut-Ku Wing by using the fowl's materials.
| Class | Great Sword |
|---|---|
| Rarity | 2 |
| Attack | 528 |
| Affinity | 10% |
| Slots | 0 |
| Price | 2,150z |
Upgrades
| Upgraded from | Bone Slasher |
|---|---|
| Upgrades into | Chicken Decapitator, Sentoryu Raven |
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 682.