Impulse

“My name is Ashton Mayflower, and may I say, you sure got a home here.”
- Impulse, disguised as Ashton, greeting Paris.The Impulse, most times just referred to as Impulse, is a ghost created by the Gods. It's form is inhabited by Ashton Mayflower, born after Ashton's countless begs for another chance at life. The Impulse is a dream creature, invading one's mind while they sleep. The Impulse senses an extreme desperation in one's mind, it manipulates the host into believing that it will help them. The Impulse then asks for control over the body to "help", where it then tries to kill the host as soon as possible. If it is successful, it gets to own the body, taking it's voice and appearance. However, it is still a deceased body, causing it to decompose as time goes on.
The Impulse has only managed to capture one body, Lana Mayflower, unless one counts the possession of its host. It has successfully possessed many others, such as Wilbur Satana, and Paris Viceroy briefly before killing him. The Impulse can leave it's host's body at any point, even if the host is alive. It may take memories from the host to prevent any spreading of the rumor, such as Wilbur's name and memories of Ash Viceroy.
The Impulse can only be removed from a body by choice, as it's host's body is already dead, it cannot be killed. The only way it can be destroyed is with a summoning, bringing it's physical form back to the world and piercing it's heart. A demon can only be slain if their physical heart is stopped once more. The Impulse was killed by Paris Viceroy on May 19, 2027, stabbed through the heart while it was distracted.