101Leafy researched the games.
Knockout Dragonsword

Able to fell a wyvern in a single stroke, it is said to be detested by the beasts.
| Class | Long Sword |
|---|---|
| Rarity | 10 |
| Attack | 1056 |
| Dragon | 540 |
| Slots | 1 |
| Price | 140,000z |
Upgrades
| Upgraded from | Smolder Dragonsword |
|---|
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 690.