Pendulum of Reality

Pendulum of Reality is a mysterious device that has been given to Evan Greyson by a creature called Graild before the events of Duplex Tribulatio.

History
The origins of the Pendulum of Reality are largely unknown even to Evan himself. The device, however, is believed to have been created as a tool to fix anomalies that have occurred throughout Space and Time as that's been one of the main purposes that Evan used it for before turning into a Young One.

The Pendulum has been given to Evan by Grail early in his human life as a way to safely travel through dangerous dimensions and realms, such as the In-Between. The device has been of great help for Evan, who, after losing his left arm, removed its string and attached it to his prosthetic, carrying it with himself wherever he went.

In Realm Between Realms, Evan chooses to take off the ancient Pendulum, giving ownership over it to Roxy as a way to protect her from the dangers of the In-Between.

Powers and Abilities
The Pendulum of Reality's main purpose for most of the time it was used by Evan was to open portals to other Timelines or Dimensions, as well as to protect him from the negative effects within them. The Pendulum of Reality has reality-altering abilities. When the crystal inside of it is swung, the pendulum is capable of changing fate itself through a Butterfly Effect.

The Pendulum of Reality is capable to change its size and other features of its appearance, such as creating a string to allow Roxy to use it or wear it as a pendant.

Trivia

 * Despite having the ability to protect its user from the negative forces of other realms, not even the Pendulum of Reality is strong enough to protect its user from the forces dwelling in the Realm of Souls.