Blue Dragon (FFVI)

A malevolent dragon encountered in the Ancient Castle, a location in a faraway world. One of the so-called eight legendary dragons who have persisted since ancient times, it utilizes the likes of "tsunami" and "aqua breath" to drown its foes in a deluge of water-elemental attacks. In its world of origin, it and its seven brethren sealed off forbidden magicite which could only be unleashed by defeating all eight.