The person with unlimited effects

This is not going to be a dedicated project of so I give permission to copy it and make it better but here is the jist of it this guy get transported to another world and has a choose to choose 1 out of these 3 powers unlimited time on every effect u get or 100x exp the third one is can teleport to anywhere even to different worlds in this story he choose the first one and to start the story he get a 2xp buff that is unlimited cause of his skill suppose to last only 2 days this is just a idea feel free to make it a story of ur own