|Mark of Cain|
|Use|| Kept the Darkness locked away|
Powers the First Blade
|Powers||Powers the First Blade, grants immunity to demonic and angelic powers, telekinesis, super strength, protection from deadly magic, absolute immortality, resurrection (but brings the bearer back as a demon/Knight of Hell), regeneration, precognition, binding the Darkness and corruption of the wielder.|
The Mark of Cain was the seal created in order to lock away The Darkness. God gave the Mark to Lucifer, who in turn passed it onto Cain to use as the source of the First Blade's power. It is one half of the weapon that Cain used against the rest of the Knights of Hell. Cain later transferred it to Dean, so that the hunter could kill Abaddon. It was destroyed when Rowena cast a spell from the Book of the Damned, but unknowingly released The Darkness upon the Earth. The Mark of Cain is currently on Amara as she is the Original Mark.
Effects of the Mark
The Mark imbues its bearer with several great powers.