101Leafy researched the games.
Tarnished Great Swd
A tarnished weapon that isn't good for much as-is. But if you polish it...
| Class | Great Sword |
|---|---|
| Rarity | 1 |
| Attack | 528 |
| Slots | 0 |
| Table price | 2,500z |
Upgrades
| Upgraded from | Rusted Great Sword |
|---|---|
| Upgrades into | Ancient Blade, Steel Ice Blade |
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 686.