| Item Name | Rath Marrow (火竜の骨髄) |
| Max Carry | 99 |
| Buy Price | 0z |
| Sell Price | 2,100z |
| Rarity | 5 |
| How to Get | Carve, Reward |
| Description |
| Rank | Monster Name | Qty |
| Low Rank | Rathian | 1 |
| Hi Rank | Rathian | 1 |
| Pink Rathian | 1 | |
| Rathalos | 1 | |
| Azure Rathalos | 1 |
| Rank | Part | Monster Name | Qty |
| Low Rank | Head | Rathian | 1 |
| Weapon Type | Production | Weapon Name | Require |
| Great Sword | Upgrade | High Sieglinde (ハイジークリンデ) | 2 |
| Long Sword | Create | Wyvern Blade 【Fire】 (飛竜刀【双火】) | 1 |
| Dual Sword | Create | Brother Flames (ツインフレイム) | 2 |
| Sword and Shield | Create | Djinn (バーンエッジ) | 1 |
| Lance | Create | ML001: Baltzenger (ブレインフォックス) | 2 |
| Hammer | Create | Red Bludgeon (レッドビート) | 1 |
| Upgrade | Red Bludgeon (レッドビート) | 1 |
| Part | Male Armor | Female Armor | Require |
| Helm |
Rathian S Helm
(レイアSヘルム) |
Rathian S Helm
(レイアSヘルム) |
2 |
|
Rathian S Cap
(レイアSキャップ) |
Rathian S Cap
(レイアSキャップ) |
2 | |
| Plate |
Rathian Mail
(レイアメイル) |
Rathian Mail
(レイアメイル) |
1 |
|
Rathian Vest
(レイアレジスト) |
Rathian Vest
(レイアレジスト) |
1 | |
| Gauntlets |
Rahtalos Vambraces
(レウスアーム) |
Rahtalos Vambraces
(レウスアーム) |
2 |
|
Rathalos Guards
(レウスガード) |
Rathalos Guards
(レウスガード) |
2 |