101Leafy researched the games.
Black Gravios Spear

Made after the Gravios' fire proofing came under study and was reborn as a weapon.
| Class | Lance |
|---|---|
| Rarity | 5 |
| Attack | 368 |
| Fire | 200 |
| Slots | 0 |
| Table price | 30,000z |
Upgrades
| Upgraded from | Basarios Venom Spear |
|---|---|
| Upgrades into | Void Gravios Spear |
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 748.