Satan

Satan is an entity of Abrahamic religions that rebelled against Yahweh and was banished to the Earth until he is chained in the abyss. He is symbolized in the form of a dragon or serpent, however, Abrahamic teachings also say that he can "take the form of a luminous angel" to deceive Yahweh's followers. Abrahamic teachings point toward Satan being the cause of temptation and wrongdoings of humans.

Satan used to be "ha-Satan" before Persian influence, whom was a prosecuting angel for Yahweh. He was chief of the Seraphim, and head of the order of Virtues. He would record the mishaps and wrongdoings of humans, and presented it to Yahweh when the soul was to be judged worthy of Heaven. Gregory the Great in his "Moralia" pays tribute to Satan by saying "he wore all of them (the angels) as a garment, transcending all in glory and knowledge."

The Islamic story of Satan is similar, but he is named Iblis and is a djinn instead of an angel. His only sin was that he did not bow down in front of Adam. Allah was going to put him to death on the spot, but Iblis pleaded for his life, and was given a stay of execution on the Earth until the final judgement when he will meet his demise.