Immutable Solution is an Alchemy Reagent introduced in Final Fantasy XIV Patch 6.1, used to craft the new Pactmaker's Set for Disciples of the Land and Hand. This Reagent is also a primary ingredient for creating a wide variety of tools and materials, such as the Hannish Fiber and Eblan Danburite, two essential resources for the Pactmaker's items. Keep in mind that Immutable Solution is only used in Level 90 Master Crafter recipes, meaning that players must have an appropriately leveled DoH job before attempting to use it in their crafting routine.
To get Immutable Solution in Final Fantasy XIV, crafters will need to trade Purple Crafters' Scrips with one of the thirteen Scrip Exchange merchants throughout the world of Hydaelyn. More specifically, one vial of Immutable Solution costs Purple Crafters' Scrips ×125. Scrip Exchanges can be found in almost every major city, including Ul'dah, Gridania, Limsa Lominsa, Idyllshire, and the Endwalker expansion's Radz-at-Han.
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It should be noted that Immutable Solution is not restricted when it comes to player-to-player commerce in Final Fantasy XIV. In other words, this Crafting Material is a common item purchasable via the Market Board. While the exact price will depend on the Data Center, Immutable Solution currently sells on average for 5,500 — 6,000 Gil each, which isn't too expensive for a newly introduced resource. However, because Crafters of Light in FFXIV will need multiple vials of Immutable Solution to create their Pactmaker's Equipment, the required Gil can quickly add up to tens of thousands of Gil. Therefore, those on a budget are recommended to acquire the Reagent via Purple Crafters' Scrip farming.
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