101Leafy researched the games.
Rusty Claymore

Hybrid created from Rathalos and Kushala Daora materials. Its cut is a death sentence.
| Class | Long Sword |
|---|---|
| Rarity | 6 |
| Attack | 912 |
| Affinity | 10% |
| Defense | +10 |
| Slots | 0 |
| Price | 30,000z |
Upgrades
| Upgraded from | Agito |
|---|---|
| Upgrades into | Grind Claymore |
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 694.