Black Samurai was a Ronin that asked for a blade from the legendary swordsmith Masamune, but due to the length that would take for said sword, he took the cursed sword of fate that corrupted him, before he was bested by Green Dragon and sealed by him.
Powers and Stats
Name: Unknown, repeatedly called Black Samurai
Origin: Scooby Doo
Age: Unknown (Was alive at the time of the legendary Masamune and spent centuries stuck on his sword)
Classification: Samurai, Immortal, Wielder of Sword of Doom
Powers and Abilities: Superhuman Physical Characteristics, Electricity Manipulation, Magic, Sword Mastery, Telekinesis (Forced bystanders to bow to him with his magic), Flight, Weather Manipulation (Made rain lightning bolts from the sky), Can walk on water, Immortality (Type 8 as he relies on his sword)
Lifting Strength: Unknown
Range: Extended melee range with Sword, higher with electricity manipulation.
Standard Equipment: Sword of Doom
Intelligence: At least average (He is a master swordsman, has shown to recognize the Sword of Fate just by looking)
Weaknesses: If his sword is destroyed he de-ages back to his old body.