Whore of Babylon

The Whore of Babylon appears only when Lucifer rises. Once she appears it is her job to damn all the people she can to hell. She appears in 99 Problems and is posing as the pastor's daughter, Leah.

As Leah, she pretends to get visions from the angels, and "foretells" where the next demon attack is going to be. She even gives them a 'excorcism' that expels the demons. Although, she is the one controlling the demon attacks and the excorcism is, as translated by Castiel, "You breed with the mouth of a goat".

Abilities
Shape-shifting- She killed the real Leah and took her form

Mind Reading- She can read minds, which helps enforce her false Prophet status.

Strength- She exbhits non-human strength when fighting off Sam and Dean.

Demon Control- She can control the demons.

Weakness
She can only be killed by a stake made from a branch of a Cyprus tree. This stake can only be wielded by a holy man.

Myth
The myth itself is woven into the antichrist story. She is also mentioned in the bible and described by John in Revelation 17. Some scholars believe that the whore of babylon is really a large allegorical figure. It is also believed she also represents Rome mostly because of the reference to her siting on 'seven mountains' (seven hills of the city).

Appearance

 * 99 Problems