By infusing sphere scrolls with the materia of your choice, you can enhance a relic weapon animus as you see fit. To infuse a sphere scroll with materia, select Infuse from its subcommands.
Each sphere scroll can be infused with up to seven types of materia, granting a bonus to attributes, casting times, and more. Please note that up to five materia can be infused onto a single scroll. Materia will be consumed upon infusion.
While grade I materia will suffice for initial infusions, progressively higher grades of materia will be required to enhance an attribute past certain points. Moreover, there are limits as to how many times a given attribute may be enhanced.
Each infusion requires the use of a catalyst known as alexandrite. Alexandrite can be obtained in exchange for Allied Seals or found by traveling to locations marked on mysterious maps obtained through select quests. The material can also be obtained by participating in FATEs with your relic weapon animus equipped.
Once you have fully infused a sphere scroll with materia, Jalzahn can use it to enhance the corresponding relic weapon animus.
In the future, it will be possible to undo this process and apply different enhancements, should you so desire.