Changes
Changed "ginormous" to "enormous" (ginormous, while a fun term, isn't a real word, and doesn
Exodia was, at first, a beast of such incalculable and intimidating might, that he was split up into five distinctive parts - each one of them being chained and then sealed away by magic, from all the other monsters (hence "The Forbidden One"). This would prevent his power from ever being used again.
As a result, in the Yu-Gi-Oh card game, there are five distinctive Exodia cards, each one symbolizing a part of the complete Exodia. In order for Exodia to regain his ginormous tremendous power, all of the five cards must be reunited in the player's hand. This brings the parts of The Forbidden One together, allowing Exodia to break free - his strength being so great that he guarantees the summoner an automatic win, regardless of the situation.
It's the effect of The Forbidden One that makes it one of the most godlike monsters amid normal ones in Duel Monsters; unlike the rest of the monsters used in duels, Exodia doesn't rely on attack and defense - it declares an immediate victory whenever complete & uncut - every time that all five cards are assembled in hand, the owner wins.