Vana'diel Bestiary: Corbrere  

Corbrere: A Master Caster is in charge of each War Warlocks unit.
There's Kayeel-Payeel of the Aquarian War Warlocks, and Zolku-Azolku of the Libran War Warlocks...
Corbrere: A few of them have their peculiarities, but they are all expertarus in magic!