The Heart of Babel!? No kidding; the Heart of Babel? ...I don't what that is, actually, but it sure sounds powerful!
Babel is a mysterious and unseen character in Final Fantasy Brave Exvius and a member of Hess' Eight Sages. He or rather what remained of him (his physical heart) was sealed in a crystal, while its power was sealed by the Wind Crystal.
Babel was a creature of unknown origin from the world of Paladia. When war broke out between Aldore and Hess, Babel was recruited into the latter's faction and served as one of its main lieutenants as part of its Eight Sages.
When the original Veritas of the Dark enacted a plan to seal the Sages in Crystal in order to force negotiations between the two factions, Babel was faced by an unknown member of the Sworn Eight of Paladia and sealed into the Wind Crystal. Through unknown circumstances, little of Babel remained except for his still beating heart that was used to power the airship Invincible. Whether this is a result of the slumber of other procedure it is not disclosed.
When Veritas of the Heavens destroys the Wind Crystal, he successfully unseals the Heart of Babil in order to provide power to the Invincible as they needed a powerful airship for their revenge.
Eventually Dr. Lazarov steals the airship for his own purposes and attempts to use it as a weapon of genocide for his experiments. A fellow sage, Bahamut was awakened after the Fire Crystal was destroyed. Sensing Babel's heart beating in the airship, the Dragon King challenges the vehicle, firing its Megaflare. The attack blasts the airship and damages it to the point Lazarov is forced to hide for repairs. Bahamut then departs.
Tower of Babel is from a story from the Book of Genesis in the Hebrew Scriptures/Old Testament/Torah, as well as other various ancient documents. The story tells of how early humanity was living in one city (violating the commandment to spread out and fill the Earth) and began construction on a great tower that would extend to the heavens so they could see God. However, God destroyed the tower and confused their language, forcing people to spread out among the Earth.The