Agasha's Mirror

Agasha's Mirror was once a simple hand mirror used by Agasha herself in experiments she performed with light and reflection. Over the years the mirror awakened. The mirror passed down from the Agasha Daimyo to his most promising student in each generation. The mirror passed to Phoenix control after the Agasha defection, with his wielder Agasha Gennai.

Abilities
The mirror acted as a shield of sorts against magic, and it revealed the Elemental composition of any item, spell, or being. The Phoenix's attempts to duplicate it failed.