Medium monstrosity, unaligned

Armor Class 15 (natural armor)

Hit Points 22 (3d8 + 9)

Speed 5 ft., climb 5 ft.

STR DEX CON INT WIS CHA
10 (+0) 13 (+1) 16 (+3) 1 (-5) 7 (-2) 3 (-4)

Skills Stealth +5

Senses blindsight 30 ft., darkvision 60 ft., passive Perception 8

Languages —

Challenge 1/2 (100 XP)

False Appearance. While the piercer remains motionless on the ceiling, it is indistinguishable from a normal stalactite.

Spider Climb. The piercer can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Drop. Melee Weapon Attack: +3 to hit, one creature directly underneath the piercer. Hit: 3 (1d6) piercing damage per 10 feet fallen, up to 21 (6d6). Miss: The piercer takes half the normal falling damage for the distance fallen.