Omega

Японское имя:

オメガ

The absolute antagonistic plot device of FF:U, Omega is a mysterious being who can destroy everything around it simply by being nearby, though whether it is truly malevolent or not is unknown. Prior to the series, Omega's body is scattered into many pieces across Wonderland in the form of living, but dormant crystals. However, when a piece of Omega is active, it is intent to find its "siblings" and fuse with them to recreate Omega, attacking anything that would interfere. Due to Omega's power, its pieces are targeted by the series' antagonists as part of the Earl's plan.

Wikipedia