"I've destroyed the only doorway between this world and the one that you and we had previously been in! [...] However, no matter how strong you are, it will be impossible for you to ever leave here for the rest of your life!" ― Piccolo (Dragon Ball Z)
The power to
imprison others in alternate dimensions. Sub-power of Dimensional Manipulation. Variation of Binding.
The user can imprison other beings in alternative dimensions. Said dimensions can either be preexisting ones or worlds of the user's very own creation.
Doom Cards (
Bakugan) Death Bombs (
Bakugan) Null Void Projector (
Ben 10) Phantom Zone Projector (
DC Comics) TARDIS (
Doctor Who) Prison Books (
Myst) Universe Core (
Space Dandy); after being destroyed Two Simultaneous Space/Ground Bridge (
Transformers Prime/RID) Yin & Yang Yo Yo (
Xiaolin Showdown) Talisman (
Sonic X); only Boom ghosts Certain Dimension ÄRMs (
Marchen Awakens Romance) Darkness ÄRM, Death Cube (
Marchen Awakens Romance) Infinite Prison ( That Time i got Reincarnated as a Slime)
Lindsey McDonald (Angel) within Wolfram & Hart's holding dimension.
Max Tennyson (Ben 10) wielding a Null Void Projector.
Grimmjow Jaegerjaquez (Bleach) using
Caja Negación to trap Ulquiorra Cifer in an alternate dimension, though Espada can escape given enough time.
Yukio Hans Vorarlberna (Bleach) using
Invaders Must Die to trap people in the pocket dimension of his handheld video game.
Superman (DC Comics) wielding a Phantom Zone Projector.
Supernova's suit (DC Comics) is equipped with a built-in Phantom Zone Projector.
Holy Angemon (Digimon) opening the
Heaven's Gate to consign his opponents into oblivion of subspace, never to return.
Garlic Jr. (Dragon Ball) opens the Dead Zone, a dimensional void of absolute darkness, which ironically he traps only his immortal self, twice.
Marin Hollow (Fairy Tail) who has mastered the "Laws of Space" can trap anyone who tries to use spatial magic in his "Personal Relaxation Dimension".
Lord Voldemort's (Harry Potter) soul trapped in limbo.
The Eight Immortals (Jackie Chan Adventures) banishers of the Demon Sorcerers with the only key to The Netherworld, the Pan'Ku box.
Karin and Sasuke (Naruto) trapped in Obito's pocket dimension.
Road Kamelot (D.Gray-man) uses her
Dream powers to create a dimension to trap Lavi, this also allows her to interact in the real world freely since it's not her real body.
Alucard (Rosario + Vampire) created a pocket dimension for Kuyō to use to entrap Tsukune and Ruby in an ever-raising inferno that only Kuyō could escape from a prepared portal.
Makora (Samurai Deeper Kyo) using
Kage Ochi that drags the victim into the shadow dimension for eternity, with nothing but darkness until death.
When he realized that the Leviathans posed a threat to the rest of his creations, Chuck Shurley/God (Supernatural) created the dimension of Purgatory and locked them inside to isolate them
Kiyoshi Mitarai (Yu Yu Hakusho) creating water golems that have a separate dimension within them, drowning those trapped inside.
Star Swirl the Bearded (My Little Pony series), banished three sirens from Equestria to the human world.
After defeating Crimson, Jellybolani (Bobobo-bo Bo-bobo) trapped them in his casino dimension.
Inuyasha's (Inuyasha) Meido Tessaiga opens dimensional portals that imprison enemies into the netherworld.
Spirit Realm (Kung Fu Panda)
Lady of Pain (Planescape)
Trappers (Eternal Darkness) are blind eldritch creatures that can teleport people who alert them to the Trapper Dimension...
...a bleak alternate dimension that exists outside of time and space.
Wuxi Finger Hold Users (Kung Fu Panda)