Jailer of Fortitude

It's a Ghrah in Ru'Hmet. It has 2 assistant ghrahs, Kf'Ghrahs. When they're around, Jailer of Fortitude can bounce magic spells cast against it back. Not sure what it is called, some say Reflect, some say Return Magic. The Kf'Ghrahs seem to change form, but Jailer of Fortitude appears to be a Humanoid (PLD) in all pictures of the Jailer fight. This Jailer drops Fortitude Axe, Fortitude Torque, Second Virtue