Key to the Door

"This χ-blade will open a door—one that leads to all worlds"

- Ventus-Vanitas

The ability to create or be a gateway or "key" to a certain location, artifact, entity or event.

Also Called

 * Event Key
 * Key Embodiment/Incarnate/Personification
 * Sacred Key
 * The Key

Capabilities
User can create or be a gateway or "key" to a location, artifact, entity or event, whether literal, conceptual, personal, purely spiritual or anything else.

Associations

 * Absolute Access
 * Access and Occlusion
 * Assailant
 * Dimensional Link
 * Dimensional Travel
 * Door Projection
 * Doorway Embodiment
 * Guardianship
 * Key-Based Powers
 * Portal Creation
 * Summoning

Limitations

 * May be limited to opening certain kind of event/gate, related event/gate or even only a single event/gate.
 * May unleash an untold evil or a guardian.
 * May need another "key" (another person).
 * Life may constantly be in danger.
 * A certain part of the user may be needed to open the gate or create a certain object.

Known Users
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Cartoons

 * Avatars (Avatar: The Legend of Korra); open/close the Spirit Portals
 * Keyper (Adventure Time)
 * Raven (Teen Titans)

Comics

 * Hellboy (Hellboy)

Films

 * Hesus (D'Anothers)
 * The Keymaker (The Matrix)
 * Vampire Princes (The Twins Effect)
 * Kazaf

Live Action TV

 * Dawn Summers (Buffy the Vampire Slayer)
 * Samuel Colt (Supernatural)
 * The Four Horsemen (Supernatural)
 * Lilith (Supernatural)
 * Ingrid Beauchamp (Witches of East End)

Manga/Anime

 * Celestial Spirits Mages (Fairy Tail)
 * Age/Bellcross (Heroic Age)
 * Briefers Rock (Panty and Stocking with Garterbelt)
 * Kazuma (s-CRY-ed)
 * Ryuho (s-CRY-ed)
 * Eibon (Soul Eater)
 * Merry Nightmare (Yumekui Merry)

Video Games

 * Boy K (Divine Gate)
 * Princesses of Heart (Kingdom Hearts series)
 * Sora (Kingdom Hearts series)
 * Vanitas (Kingdom Hearts series)
 * Ventus (Kingdom Hearts series)}}

Known Objects

 * Right Hand of Doom (Hellboy)
 * Keyblades (Kingdom Hearts series)
 * χ-blade (Kingdom Hearts series)
 * Master Sword (The Legend of Zelda)
 * Colt (Supernatural)
 * Mark of Cain (Supernatural)
 * Rings of the Horsemen (Supernatural)
 * Pan'ku Box (Jackie Chan Adventures)