The Magic Hat
I am Malefagor, the All-Knowing. I provide two services for my owner. First, I can rescue you from a calamitous situation. However, the energy required to do so takes some time to replenish, so do not expect me to save you from every worry and trouble. When I teleport you, I will never take you to the same location twice. Otherwise, I have no control over our destination.
Second, each day, I shall offer you a bargain. Place me upon the head of a sentient being I have yet to meet and in return, you may ask questions which I will then answer as simply as possible. The number of questions you are allowed will vary based on how interesting I find the new individual.