Building your ideal character won't always be easy in The First Descendant. If you want to get the most out of your build, you'll need to get Crystallization Catalysts.
IMPORTANT ITEM RESETTING YOU TO LEVEL 1 – HERE'S WHY – Crystallization Catalyst Guide
A Crystallization Catalyst changes the type of module socket of a weapon or Descendant. Inserting a Module of a type that matches the socket reduces the capacity cost, allowing you to use more powerful Modules in your build.
Below are all the ways you can get Crystallization Catalysts in The First Descendant.
The first way to get the Crystallization Catalyst is to research it. It takes some time to get certain materials, but it is possible to get everything you need without paying a cent.