Devil's trap (object)

A Devil's Trap is a means to trap a demon. It first appeared in its self-titled episode, Devil's Trap. Like salt or iron, demons can't escape once inside the trap. They can easily walk into one, but can't get out unless the circle is broken.

Usage
Hunters need a roof or floor to draw this trap to catch a demon. They can use, chalk, spray paint, marker, or blood (Caged Heat) to draw it. Even using it as a light can be effective (Weekend At Bobby's). A Devil's Trap can also be conceled and still catch a demon. Once down, this can be used to trap any sort of demon. In addition, it can be used to protect something.

In the episode Devil's Trap, Sam draws it on the truck of the Impala to protect the Colt. Another situation is in All Hell Break Loose Pt.2, when Samuel Colt created one giant one to protect the Devil's Gate. This one was made out of pure iron railroads, so a demon couldn't break it.

Planting the Trap
Hunters draw traps on places that could easily be overlooked. Some examples include the ceiling, or underneath rags. A veteran hunter like Bobby has a Devil's Trap in his living room near the fireplace (which is used to trap Meg). He also has one outside the panic room, and two more inside the panic room itself, one painted on the floor, and the other was soldered in the ventilation above the room. He also uses a trap on the door of his car trunk, to transport captured demons and preventing them from escaping.

Weakness
Despite the fact that it can trap most demons, its greatest weakness is it is simply a drawing. If the drawing is in any way broken or altered, the trap will lose its power. And although able to trap demons, and strip them of their powers, sometimes it does not always work. This was demonstrated by Meg in Born Under a Bad Sign, when she used a spell to shake the house, thus breaking the trap that was trapping her. Another demon named Casey was able to cast a spell from within, although she was unable to release herself.

Appearances

 * Season 1
 * Devil's Trap - Used to trap Meg.
 * Season 2
 * Crossroad Blues - Used to trap Crossroads demon.
 * Born Under A Bad Sign - Used to trap a possessed Sam.
 * All Hell Breaks Loose - Part 2 - Used to protect the Devil's gate.
 * Season 3
 * The Magnificent Seven - Used to trap one of the Seven Deadly Sins.
 * Sin City - Used to trap the demon Casey.
 * Jus In Bello - Used for protection and trapped Ruby.
 * No Rest for the Wicked - Used to trap Ruby.
 * Season 4
 * Lazarus Rising - Used against Castiel, but didn't work since hes not a demon.
 * Are You There God? It’s Me, Dean Winchester - In Bobby's Panic Room
 * Metamorphosis - Used to trap a demon.
 * I Know What You Did Last Summer - Used to trap a demon.(flash back)
 * The Monster at the End of This Book - Attempted to use it against Lilith.
 * Season 5
 *     Sympathy for the Devil - Appeared in John's container for protection.
 * Good God, Y'all - Used for protection.
 * Abandon All Hope... - Drawn on Crowley's carpet, but was foiled.
 * The Devil You Know - Used to contain Brady.
 * Season 6
 * Exile on Main Street - Used for protection.
 * Weekend At Bobby's - Used to trap Crowley.
 * Caged Heat - Used to trap Crowley.
 * The Man Who Would Be King - Used to hold a captured demon.
 * Let It Bleed - Dean uses it to hold demons while he tortures them.
 * Season 7
 * Meet The New Boss - To hold Crowley.
 * Season Seven, Time For A Wedding - Used to trap Guy.
 * Repo Man - Used for protection in Nora's house and to trap a demon.
 * Reading Is Fundamental - Used to trap Meg.
 * There Will Be Blood/Survival of the Fittest - Used by Dick Roman to trap Crowley.
 * Season 8
 * We Need To Talk About Kevin - Created by Kevin Tran as protection.
 * A Little Slice of Kevin - Used by Linda Tran to trap a demon in her trunk.
 * As Time Goes By - Engraved into a bullet by Henry Winchester to bind Abaddon in one form forever.