Iblis is the of the Qur'an. He's the who refused to bow to Adam and thus was cast out of heaven. However, he's not an opponent to God, he was banished for his disdain for humanity. He has seven hairs on his chin and is blind in one eye. He has a penis on the inner side of his right thigh and the vulva on the other side, and produces his offspring by simply opening and closing his legs together. This is the reason there are so many shayatin (malevolent jinn).