101Leafy researched the games.
Black Katana Mk.I

Chemically treated Bone Katana made using razorsharp Hornetaur materials.
| Class | Long Sword |
|---|---|
| Rarity | 3 |
| Attack | 576 |
| Defense | +2 |
| Slots | 1 |
| Table price | 2,600z |
Upgrades
| Upgraded from | Large Bone |
|---|---|
| Upgrades into | Black Katana Mk.II |
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 692.