101Leafy researched the games.
Bone Great Axe
Streamlined for easy swinging. Looks like an Axe, but it's actually a Hammer.
| Class | Hammer |
|---|---|
| Rarity | 6 |
| Attack | 1092 |
| Affinity | 5% |
| Slots | 2 |
| Price | 40,000z |
Upgrades
| Upgraded from | Bone Broadaxe |
|---|---|
| Upgrades into | Ceanataur Head Axe |
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 720.