Sealing is typically the ability to place or seal one or more objects into another object (though there are various applications).
The mechanism behind the sealing process varies greatly from fiction to fiction (be it through magic or ki use), though the end results are similar. When used as an attack, sealing techniques can often bypass physical durability entirely.
There are two types with this power:
Type 1: The first type involves sealing physical objects, including living beings. These objects can be sealed within a containment item, though sealing the object within the caster or other people has been shown to be effective. When used against a living being, these powers have the potential to be considered broken depending on how freely the user can preform the sealing technique, though many cases require prep or have imposed drawbacks on the user to prevent this. When a living being is sealed within another living being, the container subject becomes the sealed target's host. The effects that the sealed target has on their host varies depending on the work of fiction, as do the effects on the target if their container is destroyed.
Type 2: The second type of sealing involves removing or locking attributes or even concepts of a target. Examples include sealing a target's magic or ki energy, or even their movement or consciousness. This type of sealing denies the target use of these aspects rather than specifically placing them in another object. These effects can be temporary or permanent depending on the user.
Soul sealing usually falls under the category of soul manipulation.