 | Name | Midlander Catalyst Billet |
| Type (Ingame) | Material | |
| Family | Crafted Item, Ingredient, Forging Ingredient, Alchemy Ingredient | |
| Rarity |  | |
| Item Source (Ingame) | Sumeru and Fontaine Trounce Domain Challenge Reward | |
| Description | Weapon forging material. Can be used to forge 4-star catalysts. Philosophers believe that there are four purposes behind earthly things. The purpose of these billets is to become a weapon worthy of accompanying a hero. |
| Table of Content |
| Obtained From |
| Used By |
| Gallery |
Obtained From
Drop
| Icon | Name | Grade | Drop |
 | Shouki no Kami, the Prodigal | Boss |                                   |
 | Guardian of Apep's Oasis | Boss |        |
 | All-Devouring Narwhal | Boss |    |
 | The Knave | Boss |        |
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Recipe
| Icon | Name | Recipe |
| Midlander Catalyst Billet | or |
| Midlander Catalyst Billet | or |
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Domain
| Icon | Name | Monsters | Reward |
 | Joururi Workshop |  | 300 |
 | The Realm of Beginnings |  | 300 |
 | Shadow of Another World |  | 300 |
 | Scattered Ruins |  | 300 |
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Stage
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Reputation
| Icon | Name |
 | Tree of Dreams |
 | Fountain of Lucine |
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"Cashcow" is truly a proper name for her. I wonder if genshin devs also refer her by that. Imagine ...