Quote Originally Posted by Erendis View Post
Can't wait to see how materia transmutation will work: http://eu.finalfantasyxiv.com/lodest...9a621dfd4f8a2d . I hope you can combine low grade to get high grade of the same type and not some kind of lottery…
While nothing is confirmed yet, aparently there's still some RNG involved.
http://www.reddit.com/r/ffxiv/commen...transmutation/

5つのマテリアを合成して異なるマテリアに変容させる「マテリア合成」が実装されます。
以下のクエストをコンプリートすることで、NPC"ミュタミクス"に不要なマテリア5つを渡すと、異なるマテリア1つに変換することができるようになります。
After completing the below quest, hand Mutamix 5 unwanted materias to transmuate into a random materia.
But I can't say it's utterly disappointing either.