Citadel Chelonian

Notes:

 * Spawned by: Archaic Rampart which spawns after defeating the original four Archaic Rampart in the center room on the east side of Floor 4.
 * The Chelonian will be summoned automatically (the rampart does not need to be engaged).
 * Citadel Chelonian is not as resistant to physical attacks as other Adamantoise family mobs, but you can still expect lower damage than normal, however.