101Leafy researched the games.
Obelion

An enormous weapon that will surely defeat a foe in one crushing strike.
| Class | Great Sword |
|---|---|
| Rarity | 6 |
| Attack | 816 |
| Dragon | 180 |
| Slots | 1 |
| Price | 50,000z |
Upgrades
| Upgraded from | Spartacus Blade |
|---|---|
| Upgrades into | Pael Keizah |
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 680.