We received a lot of feedback in this thread regarding various things (like materia stats, materia slot placement, and other suggestions) that we compiled and passed along to the development team. The Item Team confirmed that they’ll look over the information and take it into consideration when planning further adjustments to materia (as well as new materia going forward).

In regards to manathirst materia specifically, our counterpart in Japan posted the following insight from the team. As stated here, and other language forums, players feel that the effects of manathirst materia are too weak, but the team disagrees. The current maximum MP recovery rate is 7.5% of the player’s maximum MP, so if their maximum MP is increased by 100 through use of manathirst materia, an additional 7 MP is recovered every tick (3 seconds). Therefore, the team believes that the effectiveness of manathirst materia is balanced alongside other materia.

However, as we said, we will continue to gather your feedback and comments and pass them along to the team for them to consider for future adjustment, so please continue submitting your feedback.