Sealed Evil in a Six Pack

So, you've just managed to defeat the evil overlord, wizard, demon, dragon, whatever. Unfortunately, the bad guy is effectively immortal, and even though he won't be able to fight right now, it will just be a matter of time before he comes back. Worse, he's so strong that just sealing his power in some container won't do the job, nor will sealing him away inside an object. What to do? Let's take him apart, and seal him in multiple containers!

As the description implies, some evils are just too dangerous to leave in just one package, hoping it never gets opened. Instead, you should split it up and hide it in a dozen different containers to prevent it from ever becoming a threat again. Of course, if one piece does ever escape, it will definitely try to gather the rest of itself to regain it's full power, so it can once again become the Big Bad it once was, but if it's power is diminished enough, it's rarely a threat to anyone.

Occasionally, the reverse can happen, where the heroes have to free parts of a good entity, perhaps reuniting the Pieces of God (if God Is Good/it's a God of Good).

Compare Sealed Cast in A Multipack and Sealed Army in A Can, for when the separate "cans" contain individuals rather than parts of one person.

A subtrope to Sealed Evil in A Can, naturally.

Anime and Manga

 * In Ronin Warriors, when the Big Bad was defeated in ancient times, his armor, the seat of most of his power, was converted into a set of 10 armors, so that if the Big Bad returned, he'd have a hard time getting them back together. Unfortunately, even without the armors, he was still absurdly powerful.
 * The Kisin Asura in Soul Eater probably counts; he was sealed in a bag made of his own skin and his blood was drained and taken elsewhere to weaken him.
 * Shabranigdo and his seven parts in Slayers.
 * One Dragonball Z movie villain was a giant monster split in half and sealed. The heroes spent a part of the movie fighting the bottom half.
 * In Umi Monogatari, Sedna has half of her in the sea and half on land.
 * In Naruto, the Sage of Six Paths sealed the body of the Ten Tailed Beast in the Moon, and divided its power into nine tailed beasts that were subsequently sealed individually.
 * The title character in Akira was dissected and placed in a series of vials. He came back in a more ethereal form.
 * An in-universe fictional example is Exodia, a Yu-Gi-Oh monster so powerful it takes multiple cards to contain him. The individual pieces are worthless, but a player who reassembles Exodia by getting all five parts in play wins immediately.

Comic Books

 * In Green Lantern: Sinestro Corps War, the fear entity Parallax is captured by the Guardians of the Universe and split into four pieces, each stored in the power batteries of the four Earth Lanterns.

Film

 * Imhotep in The Mummy 1999. He rises as soon as the spell on the sarcophagus is broken, but must recover the organs stored in his canopic jars before he can regain full power.

Literature

 * In Mistborn, there's a rather complicated version of this with.
 * In Black Company, some legends claim that Kina is sealed in this way.

Live Action TV

 * The Judge in Buffy the Vampire Slayer could not be killed in ancient times, so instead he was cut into pieces and scattered in a number of boxes around the world. Cue modern times and Spike and Drusilla reassembling them.

Video Games

 * Grandia II gave us Valmar, the Big Bad demon that was defeated in ancient times, and the pieces of it's body spread around the world and sealed away. Interestingly, each of the pieces has a mind of its own - none lay claim to being the original. The Church of Granas sends Elena on a quest to gather the pieces so they may be destroyed, though.
 * The infamous Kagnaxx in Baldurs Gate 2.
 * Mario and Luigi Partners In Time: The protagonists spend the game collecting several shards of the Cobalt Star. Only when they collect and put the pieces together do they realize that the star
 * Castlevania II Simons Quest: After the first game, Dracula was defeated and his body was divided into five parts, which Simon Belmont must put together, to resurrect Dracula and kill him again.
 * In Baten Kaitos, Malpercio would only be revived if the End Magnus of Ar, Le, He, Che and Bo were brought together. There's a bit of a hint when Bo is pronounced like Bah that there's something going on, and its later revealed that the names are short for Arms, Legs, Head, Chest and Body respectively.
 * It's actually a . Connecting the 5 in Eternal Wings
 * In Zack and Wiki Quest For Barbaros Treasure, Barbaros was split into many pieces of treasure; he is restored if every piece is gathered together. He was a near deity-level pirate captain; each treasure held one of his Combo-Platter Powers.
 * The Bowerstone residents of Fable II sealed the body parts of their evil, ex-mayor Lady Gray in various locations around Albion. As an optional quest, the Hero can gather them in order to resurrect her. How evil her reanimated corpse really is, is up for debate though.
 * The Big Bad in Dragon Quest VIII. His soul is sealed inside the, and requires the death of seven people to break. His body
 * A variant in Shin Megami Tensei Devil Survivor: Bel, the ruler of the demons, was sundered by God, but not technically "sealed" as such. Instead, the individual demons he was broken up into - all easily recognized by the syllable "Bel" in their names - have been fighting each other for supremacy, consuming each other in the process in the hopes of reconstituting the original Bel's power and ascending to the Throne of Bel.  The protagonist himself ends up a contender for the Throne of Bel when he defeats Beldr and inadvertently absorbs his powers.