Phantom is a flying undead hostile mob that spawns in the night sky when a player has not slept in a bed or died for three or more in-game days. It dives from above to attack players, making it a persistent airborne threat. Phantoms are one of the few mobs that ignore light levels, allowing them to spawn even in well-lit areas.

Phantoms drop 0–1 Phantom membranes, which can be increased with the Looting enchantment. If killed by a player, they drop 5 experience.

Phantoms cannot be bred and only spawn when a player has not rested for three nights. They are repelled by cats, which hiss at them and force them to stay at a distance. They burn in sunlight, making them most dangerous during extended night exploration.

Phantoms are hostile mobs that attack by swooping down from the sky and biting the player. After each attack, they fly back upward before diving again. Their flight pattern makes them difficult to hit with melee weapons, making bows or ranged attacks more effective. Phantom membranes are a key ingredient for brewing Slow Falling potions and can also be used to repair elytra, making phantoms an important mob for late-game progression.