| Type | Weapon Ascension Material |
| Rarity | |
| In-game Description | Weapon Ascension Material.
Rumors of sea monsters are commonplace in Liyue, since the other shore is an unknown region that lies outside of Teyvat. Without the protection of The Seven, all that lies beyond is unknown chaos. Only power beyond the order of Teyvat is able to stain the power of Rex Lapis black. |
| Principium of Astrology |  |
When Mona crafts Weapon Ascension Materials, she has a 25% chance to refund a portion of the crafting materials used. |
