Theory about Dragons (CONFIRMED BY RIOT EMPLOYEE)
So there a little pit under the Dragon pit. It holds a ton of dragons. Every 6 minutes, the handler of all of the dragons asks "Which one of you wants to go to Dragon Fun Land?" All of them are very excited to go there. One gets sent there, and obviously never comes back. The Dragons still in the pit's underground pit think that the last one just went to Dragon Fun Land. Meanwhile, the one in the Dragon area gets killed, and realizes the evil truth of the Dragons.
This theory was confirmed by a Riot employee.
isn't actually Satan, He's god purging the world from everything that's sinned