Armor Class 12
Hit Points 22 (5d8)
Speed 5 ft., fly 50 ft.
Damage Resistances acid, bludgeoning, cold, fire, lightning, piercing, slashing, thunder
Damage Immunities necrotic, poison
Condition Immunities charmed, exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, unconscious
Senses Darkvision 60 ft., passive Perception 10
Languages Common plus one other language
Challenge 2
Incorporeal Movement. The poltergeist can move through other creatures and objects as if they were Difficult Terrain. It takes 5 (1d10) Force damage if it ends its turn inside an object.
Multiattack. The poltergeist makes one Object Slam attack and uses Telekinetic Thrust.
Object Slam. m,r +4, reach 5 ft. or range 30 ft. Hit: 7 (2d4 + 2) Bludgeoning damage.
Telekinetic Thrust. str DC 12, one creature the poltergeist can see within 30 feet. 9 (2d6 + 2) Force damage, and the target is pushed up to 30 feet straight away from the poltergeist.
Vanish. The poltergeist gives itself the Invisible condition or ends that condition on itself.
Monster Manual (2024), p. 246