101Leafy researched the games.
Black Belt Blade

A blade that recalls the blood and sweat of training, bringing fond memories.
| Class | Great Sword |
|---|---|
| Rarity | 4 |
| Attack | 720 |
| Slots | 2 |
| Table price | 6,000z |
Upgrades
| Upgrades into | Expert Blade |
|---|
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 688.
Materials
Blackbelt Ticket ×8, Blangonga Coin ×10, Shogun Coin ×8, Daimyo Coin ×10