Cain, also known as The Father of Murder, was the first born of Adam and Eve, the brother of Abel, and founder, the former leader, and trainer of Knights of Hell. Cain and his brother are also the direct ancestors to Sam and Dean. Cain became known as the worst demon to ever exist before retiring for love. After coming out of a 150-year retirement to fight Abaddon's forces, Cain fell back under the influence of the Mark of Cain and began slaughtering his descendants, leading to Dean killing him.
Powers and Stats
Name: Cain, The First Son, The Father of Murder
Age: Thousands of Years Old
Classification: Demon, Leader of the Knights of Hell, Human (Formerly)
Powers and Abilities: Superhuman Physical Characteristics, Telekinesis, Teleportation, Telepathy, Pyrokinesis, Photokinesis, Regeneration (Mid-Low), Possession, Soul Manipulation, Immortality (Types 1 and 3), Supernatural Perception, Reality Warping (Through Deals), Higher Resistance to Demon-Killing Blades, Angel Blades and Holy Water, Smiting, Weather Manipulation, Electrokinesis, Terrakinesis
Attack Potency: City level (Easily defeated dozens of Demons. Stated he could have "swatted Castiel like a fly", and later easily defeated him. Overpowered Dean, who had the Mark of Cain), Unknown with the First Blade (Is a conduit of the Mark of Cain, which is powered by The Darkness. Other wielders have killed Knights of Hell, Demons, Angels, Reapers, and various other beings)
Speed: Subsonic+ with Supersonic reactions, possibly much higher (Has kept up with Angels and Demons in combat)
Lifting Strength: Class 5
Striking Strength: City Class
Durability: Building level+, City level in Host (Easily withstood a blast from Castiel, which only ruffled his hair) His true nature as a non-corporeal spirit makes him very hard to kill.
Range: Extended melee range for regular attacks, possibly Planetary for certain abilitites
Standard Equipment: The First Blade
Intelligence: High; lived for Thousands of Years and accumulated vast knowledge.
Weaknesses: As a human, he needed to kill in order to survive. Can be killed if the Mark is removed from him, which can be done so with specific spells. Can be killed by the First Blade, though he cannot permanently kill himself with it. As a Demon, his abilities can be suppressed by a Devils Trap, though he retains them inside one, unlike other demons.