Mister Dark

Mister Dark is the main villain of Fables after The Adversary.

History
Trapped by the Boxing League, a division of Warlocks specialized in capturing and containing the most dangerous of magical threats, during the expansion of the empire, Mister Dark was contained within a stone box which drained his power and transmitted it to be used by the Adversary. Looters mistakenly released the creature who proceeded to drain them of life. Mister Dark reacquired his stolen power including a portion that powered the Witching Cloak, destroyed the enchantments that held the Fabletown buildings together and set off to Fabletown to seek revenge. Upon arrival, he captured and then killed Kay, as well as a few hundred New York residents for the construction of his new palace. his power becomes; if he is surrounded by those who possess little fear, he becomes weaker. He has the power to consume the teeth of humans and, by spitting them up one at a time, summoning the spirit of the owner of said tooth to serve him. He can do this once per tooth, so he can generally do this a maximum of thirty two times (Less if the person in question had poor oral hygiene).Dark later dies at the hands of North wind

powers and ablitlies
Mister Dark is the personifcation of of Darkness itself and can use the dark magic as well as shape shift and manipulation.