101Leafy researched the games.
Black Fatalis Blade

Those holding this blade are forever locked in struggle with the elder dragons.
| Class | Great Sword |
|---|---|
| Rarity | 10 |
| Attack | 1344 |
| Dragon | 270 |
| Slots | 1 |
| Table price | 150,000z |
Upgrades
| Upgraded from | Fatalis 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.