Manat

One of the Shattered Gods.
Power: Ability to control flames. Emotion: Joy Call: ???? Weakness: ???
No temple specimens exist of this bind. Manat binds are extraordinarily rare due to the emotion she resonates with, and there is maybe one a generation who taps her power. Insufficient data exists to properly categorize her bound mages.
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(Tien's notes)
The temple knows little of Manat. Her power is not only the evoking and controlling of flames, but also immunity to burns and smoke, and vastly increased hearing. Tsuru does not remember the exact creed used to call the goddess, but it was along the lines of 'use me as a tool', an uncomfortable creed to even think about. As far as weaknesses go, overstimulating their hearing when they don't expect it may work, as may lulling them into believing they're winning as you lead them to a trap. The joy inside them can blind them.
Unlike most binds, Manat is a 'positive' emotion. My guess is that this makes her bound fall to lower levels faster, as the rush of the bind is addictive. Keeping a Manat-bound balanced seems like it would be an intense task.