Board Thread:Questions and Answers/@comment-1.9.104.28-20140213212355/@comment-4972407-20140213214353

Fusing the mag while the deamon isn't at max level is ideal, since it would raise the deamon and its skill level at the same time. Using the mag when the deamon is at max level would just raise its skill (and not the level).

*the above assumes that the mag and deamon have the same skill.