101Leafy researched the games.
Iron Impact

An abundance of superior ore has sent the Iron Hammer's power into the stratosphere.
| Class | Hammer |
|---|---|
| Rarity | 7 |
| Attack | 1092 |
| Slots | 3 |
| Price | 55,000z |
Upgrades
| Upgraded from | Great Demon Hammer |
|---|---|
| Upgrades into | Iron Repellant, Icy Impact |
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.