Powers and Stats
Origin: Death Note
Wielders: Light Yagami, Ryuk, Rem, Misa Amane, Teru Mikami, Soichiro Yagami, Kyosuke Higuchi, Jack Neylon
Powers and Abilities: Death Manipulation (The Death Note can kill people who have their name written in it), Limited Probability Manipulation (Can control when and how people die)
Attack Potency: Unknown. It completely bypasses conventional durability, though it could cause vehicles to crash and buildings to burn down in the right circumstances
Range: Multi-Universal (Can kill humans on Earth from the separate Shinigami Realm)
Weaknesses: The wielder must know the victims' name and face, the Death Note cannot make the victim do the impossible, it cannot kill a shinigami, and is only known to work on humans.
Note: A full list of the rules of the Death Note can be found here.