101Leafy researched the games.
Jade Mace

Also known as the Dragon's Crown of Flame, its strike is like that of a meteor.
| Class | Hammer |
|---|---|
| Rarity | 5 |
| Attack | 832 |
| Fire | 300 |
| Slots | 1 |
| Price | 50,000z |
Upgrades
| Upgraded from | Jadite Mace |
|---|---|
| Upgrades into | Lunastra's Crown |
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 726.