101Leafy researched the games.
Rusted Replica

Replica of Sword discovered in Jumbo Village. A mere shadow of the real thing.
| Class | Sword |
|---|---|
| Rarity | 4 |
| Attack | 126 |
| Slots | 2 |
| Price | 5,000z |
Upgrades
| Upgrades into | Eternal Replica |
|---|
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 706.
Materials
Hero of JumboBio ×1, Lightcrystal ×2