Sealing Spell

The Sealing Spell is the Dragon Ball universe's answer to a problem that punching cannot solve: what do you do with an enemy you cannot destroy? You seal them away. This class of magical techniques has been used by Kais, Gods of Destruction, wizards, and angels to imprison threats inside objects ranging from swords to music boxes to entire stars.

The most famous sealing belonged to Bibidi, who trapped Majin Buu inside a Sealed Ball roughly 5 million years before the present day. The incantation required is so alien that it cannot be properly pronounced by humans. Transliterated, it reads something like "Nuwemwittsimwawaay." Bibidi recorded the spell in a notebook, which his clone Babidi later used to threaten Buu with re-imprisonment whenever the Majin disobeyed orders.

One of the series' most consequential sealings happened roughly 75 million years ago, when Beerus sealed Old Kai inside the Z Sword during a heated argument at one of their thousand-year coordination meetings. Beerus apparently decided that destroying the Sacred World of the Kai would be improper, so he opted for imprisonment instead. Old Kai remained trapped for millennia until Gohan accidentally broke the sword during training, freeing the ancient Kai and unlocking access to his Ultimate power-up ability.

Babidi's version of the spell had a critical weakness: it required the caster to speak the incantation aloud. Buu figured this out and strangled Babidi to prevent him from reciting the words, then killed him outright. Simple, effective, and the reason Babidi never actually uses the seal on-screen.

The angel Merus brings sealing magic into the Dragon Ball Super manga during the Galactic Patrol Prisoner Saga, using a Sealing Spell to target the crystals on Transformed Moro's body and lock away his Copy Ability. This is a more surgical application than the older sealings, targeting a specific power rather than an entire being.

In Super Dragon Ball Heroes, Fu uses what he calls "the strongest Sealing Spell in history" to chain the entire Prison Planet. And in the Xenoverse series, the Supreme Kai of Time Chronoa demonstrates enough skill with sealing magic to imprison Demon God Demigra in the Crack of Time and even seal his self-destructing Majin Emblem inside an energy sphere before throwing it away, turning the technique into an improvised bomb disposal method.