101Leafy researched the games.
Iron Striker+

A giant Hammer often called a mass of steel. Boasts superhuman power.
| Class | Hammer |
|---|---|
| Rarity | 3 |
| Attack | 832 |
| Slots | 0 |
| Price | 4,250z |
Upgrades
| Upgraded from | Iron Striker |
|---|---|
| Upgrades into | Anvil Hammer |
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 718.
Materials
Hard Ticket ×1, Dragonite Ore ×1