101Leafy researched the games.
Binding Blade+

Crafted by popular demand, this is the ultimate binding sword with G-Level power.
| Class | Sword |
|---|---|
| Rarity | 9 |
| Attack | 378 |
| Slots | 1 |
| Price | 100,000z |
Upgrades
| Upgraded from | Binding Blade |
|---|---|
| Upgrades into | Great Kris |
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.