101Leafy researched the games.
Akantor Broadsword+

Great Sword with the black god's power. The wielder is doomed to destroy the world.
| Class | Great Sword |
|---|---|
| Rarity | 10 |
| Attack | 1584 |
| Affinity | 50% |
| Slots | 0 |
| Price | 145,000z |
Upgrades
| Upgraded from | Akantor Broadsword |
|---|
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.