Ix'ghrah

Notes:
 * Final boss for Promathia Mission 8-2.
 * About 8250 HP.
 * Changes between the four Ghrah forms at will, and uses the appropriate 2-hour of its form at the time.
 * In ball form it is a Black Mage, uses Manafont, and likes to cast Aeroga III.
 * It cannot be silenced (because it's wind-elemental), but can be stunned.
 * In bird form it is a Thief, has extremely high evasion, and uses Perfect Dodge.
 * In spider form it is a Warrior, and uses Mighty Strikes.
 * In human form it is a Paladin, and uses Invincible.