101Leafy researched the games.
Khezu Shock Sword

Made of Khezu. Wrapped in attribute material with an electrified blade.
By sealing Thunderbugs and other things inside and covering the whole outside with Khezu hide, its makers succeeded in charging the blade itself with electricity. A highly experimental weapon, completed through close work between the scribes who spent many years studying the Khezu's habits and the traits of its materials, and the workshop.
Our translation of 復刻 ハンター大全 (KADOKAWA / Enterbrain, 2014), page 145.
| Class | Great Sword |
|---|---|
| Rarity | 3 |
| Attack | 624 |
| Thunder | 220 |
| Slots | 0 |
| Table price | 3,100z |
Upgrades
| Upgraded from | Ravager Blade |
|---|---|
| Upgrades into | Khezu Shock Blade |
Can also be made new at the smithy.
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 684.
Materials
Flabby Hide ×5, Thunderbug ×15, Machalite Ore ×8, Rubbery Hide ×5