History Main / LeakingCanOFEvil

* ''ComicBook/AntMan'': In ''ComicBook/AntMan2022'', after Ultron's defeat over in the pages of ''ComicBook/IronMan'', the Avengers seal him up in a vibranium casket covered in Asgardian runes, hoping that ''this time'' it'll keep him locked up forever. [[spoiler:Turns out he was still able to call out to Black Ant, persuading him to come and free him. And that the Asgardian magic had interacted with Ultron to give him a power boost.]]
* ''ComicBook/{{ElfQuest}}'': This is how Winnowill ends up when Rayek traps Winnowill's soul inside his own. Winnowill is mostly contained but occasionally is able to either affect Rayek's actions or even lash out with her own magic powers. She even manages to [[spoiler:start a cult, with herself as the "Redeemer", at one point, due to]] leaving signs lying around. Learning about them is what causes Rayek to realize she is leaking.
* ''ComicBook/GreenLantern'': It's revealed in ''ComicBook/GreenLanternRebirth'' that Parallax, the yellow Fear Entity, was trapped inside the Central Battery a very long time ago, but his corruptible influence gave Green Lantern rings' weakness to yellow and briefly drove Hal Jordan mad.

* ''ComicBook/MyLittlePonyFriendshipIsMagic'': [[EldritchAbomination The Umbrum]] once roamed free and wrought havoc in the Frozen North (where Crystal Empire was later built), but were sealed away in another dimension thanks to the power of Crystal Heart. Although it still keeps them trapped in there, they are apparently still capable of influencing the real world to a degree, since they were able to disguise one of their own as a pony, send him to the Crystal Empire as both figurative and literal Trojan Horse and later communicate with him and awaken his latent powers.
* ''ComicBook/{{Nova}}'': In ''ComicBook/Nova2007'', the Luminals imprisoned their archenemy Abyss in a high-tech coffin meant to suppress his powers while they prepared to get rid of him at the edge of the universe. Abyss managed to open a small crack in the coffin, however, and promptly started [[ZombifyTheLiving zombifying people]] in an attempt to free himself.
* ''ComicBook/ScarletWitch'': In the Marvel Universe, cultists in the Eastern European country of Transia tried to summon a prehistoric EldritchAbomination named Chthon at the foot of a local mountain named Wundagore. Realizing their mistake, they sealed the part of it they managed to summon away in the mountain, but its presence is the reason why clay from the mountain can be sculpted into statues that can mind control others and why Wanda Maximoff has so much magical potential.
* ''ComicBook/{{Shadowpact}}'': The comic reveals that the slumbering, highly powerful and ''very'' EvilSorcerer Dr. Gotham has been sleeping beneath (wait for it) [[ComicBook/{{Batman}} Gotham City]] for centuries. He inadvertently influenced the city into becoming a crime ridden cesspool with a penchant for attracting costumed lunatics.
* ''ComicBook/{{Shazam}}'': In ''ComicBook/BillyBatsonAndTheMagicOfShazam,'' [[KidHero Billy]] turns out to have accidentally made himself a [[SealedInsideAPersonShapedCan Person-Shaped Can]] for [[spoiler:[[PsychicPowers Mr. Mind]]]], which after a few weeks causes first [[SuperPoweredEvilSide Captain Marvel]], then Billy to become NotHimself.

* In ''VideoGame/TheElderScrollsIIIMorrowind'', BigBad Dagoth Ur was initially defeated thousands of years ago and his physical form was destroyed. However, he had already used the [[MacGuffin Tools of Kagrenac]] on the [[GodIsDead Heart of Lorkhan]], allowing him to [[AscendToAHigherPlaneOfExistence ascend to godhood]]. Over the millennia that the Tribunal, a trio of Dunmeri [[PhysicalGod Physical Gods]], ruled Morrowind, he coalesced and returned to a physical form. He ambushed the Tribunal on one of their yearly pilgrimages to the Heart to replenish their divinity and stole two of the Tools. Cut off from their source of power, the Tribunal erected the Ghostfence around Dagoth Ur's citadel of [[{{Mordor}} Red Mountain]], hoping to keep him contained. Unfortunately, his power has waxed since re-awaking while the Tribunal's have waned, allowing him to spread his influence outside the Ghostfence via [[TheCorruption The Blight]] and [[PsychicDreamsForEveryone psychic dreams]] for his followers, while the Ghostfence is implied to have shrunk from a dome (which kept the Blight mostly contained) to a simple wall (which allows the Blight to be carried outside Red Mountain by winds and cliff racers).