Phantom is a fierce flying undead mob that could be found in the Minecraft sandbox game by Microsoft. Minecraft's Phantoms are hostile to players and spawn when the player hasn't slept or died for three or more days. Phantoms usually fly around in circles above the player leaving a trail of gray smoke after them. Phantoms are also extremely agile and they even have the fastest mob speed in the Minecraft game. They are a menace in the game as they swoop down fast to attack the player. Phantoms can be stopped if you attack them. A fanart Minecraft progress ber for YouTube with Phantom.