J.K. Rowling's prequel to the Harry Potter series is set to hit theaters next week and Google wants to help you prepare by turning your phone into a magic wand. On an Android device, you can cast "spells" with an "OK Google" voice command. After you alert your phone with the magic phrase, follow it up with a command like "lumos" and "nox" to turn the flashlight on and off. You can also use "silencio" to mute any sounds and notifications. Sure, it's rather simple, but it's a neat way for Potter fans to get ready for Fantastic Beasts and Where to Find Them ahead of next week's debut.