User blog comment:Yuu Chikuwawa/About 9 Sacred Treasures/@comment-26364637-20151104034404/@comment-27148187-20151104045315

Is this a question?

Because the disciples are who enhanced the power of sacred treasures.

Based on lore, Quartz is the disciple who gave name to all sacred treasures. I don't know about Mahalu's case (maybe she already had sacred axe from the start).