101Leafy researched the games.
Punishment Blades

The fearsome blades of the gold and silver dragons. Powerful fire attribute.
| Class | Dual Blades |
|---|---|
| Rarity | 10 |
| Attack | 350 |
| Fire | 400 |
| Slots | 1 |
| Price | 125,000z |
Upgrades
| Upgraded from | Corpse Blades |
|---|
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 714.