Yamato

weapon (longsword), Artifact (requires attunement)

One of 3 swords forged from the human love felt by an Archdevil for a human woman, the Yamato represents the split nature between the archdevil's love for his wife, and the evil of his nature.

Legend has it the blade is so sharp, it holds the ability to cut through anything and everything which has ever existed, including the fabric of reality itself.

The Yamato counts as a +3 long sword, and has the siege property.

Demensional cuts: The Yamato holds the ability to cut through the very reality of the world and planes themselves. As an action, the sword can cast teleport a number of times each day equal to the attuned creature's intelligence modifier (minimum 1), and can cast Plane shift once per day. Reuses of this ability return with the dawn.

Emotional: The Yamato imposes emotion upon the person who wields it. The one who is attuned to the Yamato will feel the desire for power, knowledge and trickery which pervades the souls of all devils. The person will always feel a need for more power, and a desire to ascend from their current flesh.

Separation: The Yamato's nature is one of duality and separation. As part of a 10 minute ritual, the sword can be used to separate the nature of an object or creature into its two halves, so long as they remain in melee range. What this means exactly is up to the dm, and should be discussed, as the intent of the wielder can mean much in this. A tiefling conflicted between his two natures might separate into a devil of some form and a normal human, one evil, the other good. A magic armor separated into normal armor and a field of unstable magic. Using this on a vampire might create a succubus and the original person the vampire was, a predatory creature feeding on humans and the original.

What ever it is used on, usually one half of the transformation is dominant, based upon the wielder's choice. Any attuned items have their attunement carried over to the dominant creature, and all class levels are transfered over as well. If the original creature's nature was of a magic nature, the non dominant creature may be granted either sorcerer or warlock levels equal to the old level amount, based on dm discretion.

However, no matter what the case, there can be only one soul in the world for a single creature. Over the course of the next 1d6 weeks, the non dominant creature will slowly erode in nature until they no longer exist. Permanently dying. This process can only be postponed up to a year by a wish spell, or by the remerging of souls through one half killing the other.

Destroying Yamato: To destroy the Yamato one must use the Rebellion in order to merge it with another weapon or creature.