101Leafy researched the games.
True Blk Dragon Swd

The Sword of Fatalis. "Born of the Dragon's life blood, vent thy fury North!"
| Class | Sword |
|---|---|
| Rarity | 10 |
| Attack | 392 |
| Dragon | 280 |
| Affinity | -10% |
| Slots | 1 |
| Price | 150,000z |
Upgrades
| Upgraded from | Black Dragon Sword |
|---|
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 706.