[Ambedo.]

Okay, time for me to put my two cents in. Yes, God created Satan, but Lucifer (his real name) was originally an angel. He started getting a big head and he thought that he was more powerful than God. So, he got himself banished and chose to become the king of Hell. Feel free to re-word that; it was kinda awkward. Anyways, the reason Satan was able to do that is because God gives us free will. It is our choice whether or not to follow Him. Satan simply exercised that free will and walked away, with the determination to drag others away from God as well. I'm debating whether or not I should post verses, but I'll just leave it for now. Feel free to ask if you want them.