User:GreekTelepath/Sandbox

Possession
Possession was a technique carried out by demons and their familiars. If done correctly, it allowed the demon to take control of their human host and influence them, compelling them to spread malice.

Mechanics
Possessions were usually carried out by doubles projected by demons, due to the Demons of Sin being confined to their vessels. Possessions could also be performed by third parties or entities borrowing the demon's power. In order to maintain the possession, the demon's vessel needed to be in proximity with the host, once again due to the demons being unable to exit their vessels. Aside from this, the demon's influence could be limited by the host's personality, with the vulnerability to possession varying per person. If the host had a carefree temperament, they were impervious to demonic possession; conversely, hosts with great insecurities were susceptible to falling under a demon's influence.

When attempting to possess a host, the demon could opt to forge a contract, gaining the host's consent and creating arrangement for both parties' benefit. However, the demon could also choose to forcibly possess their host, often without their knowledge. When done successfully, possessing a host granted the demon control over their personality and actions. Because of this, the demon often compelled their host to commit a certain vice and ensue destruction to others, causing them to act similarly to an HER. If the demon had enough power, it could take control of the host's body. While possessing a host, the demon could communicate with them telepathically.

While under demonic possession, the demon's host was provided with the demon's unique powers and abilities and thus capable of superhuman feats. The host could also undergo a demonic transformation in order to amplify the demon's powers at their disposal. Aside from this, the host was automatically healed by the demon, making them functionally immortal; when possessed, a host could only be killed by the magic of another demon as long as the demon maintained their possession. In the Demon of Lust's case, its host had to maintain the demon's power by regularly having sexual intercourse. If possessed for a long time, the host's personality could be degraded by the demon, eventually making them a puppet to the demon's will.

When possessing a host, the demon was vulnerable in various ways. The demon could also be affected by the host's actions or choices. If the host wiped their own memory, the demon was forced into a half-sleep, making them unable to communicate unless called upon. The demon could also be weakened by the power of other demons, and even killed by their own host if exhausted enough. Aside from this, the demon was vulnerable to outside forces, such as removing their vessel from the host's proximity; doing this would cause the demon's double to lose power and make the demon unable to maintain the possession. The demon could also be forcibly driven out of its host via exorcism, forcing it to return to its vessel. If the demon's vessel was sealed while it was possessing a human, its double would lose power, thus nullifying the demon's effects.

Despite these threats, the demon could also choose to revoke its possession, withdrawing its double from the host's body and cutting them off from its powers. As a result of possessing hosts, Demons of Sin could develop motivations of their own, progressing from their natures as blank slates as they interacted with humans over time. For humans, performing a variant of the swap technique also allowed for them to "possess" hosts, transferring their soul into the target's body and suppressing their consciousness. After death, those possessed by demons were unable to enter the Heavenly Yard due to the rules set by Sickle.

Users

 * Demon of Lust
 * Demon of Gluttony
 * Demon of Pride
 * Demon of Envy
 * Demon of Greed
 * Demon of Wrath
 * Irina Clockworker
 * Banica Conchita
 * Gretel

Conceptualization and Origin

 * The act of possession is possibly inspired by the concept of demonic possession, wherein a demon or other malevolent entity takes control of a person's body.