Quote Originally Posted by Norbi View Post
>>>After completing “Forging the Spirit” you will be able to use action Materia Assimilating with spirit-bonded gear.<<<


Have you done Forging The Spirit yet? Because I haven't seen you mention it or acknowledge my original post, OP.
That was precisely the issue. I hadn't done Forging The Spirit yet. I had only completed Life, Materia and Everything which isn't enough.

Thank you!