Medium construct, unaligned
Armor Class: 20
Hit Points: 253 (5d100) 5d100
Speed:
420666 ft
Damage Vulnerabilities: Bludgeoning, Acid
Damage Resistances: Slashing
Damage Immunities: Cold, Fire, Lightning, Necrotic, Psychic, Piercing
Condition Immunities: blinded, charmed, deafened, grappled, frightened, paralyzed, petrified, poisoned, unconscious
Senses: Blindsight 60 ft., passive Perception 30
Challenge Rating: 15
Anomalous properties. SCP-173 cannot move as long as at least 1 living creature can see it. SCP-173 will automatically fail any strength or dexterity checks it makes while being seen. it can still move when seen with blindsight, tremorsense, or true sight.
Actions
Crunch. SCP-173 chooses one creature within 5 feet of it and reduces it to 0 hit points.
SCP-173 is animate and extremely hostile. The object cannot move while within a direct line of sight. Line of sight must not be broken at any time with SCP-173. Personnel assigned to enter container are instructed to alert one another before blinking. Object is reported to attack by snapping the neck at the base of the skull, or by strangulation. In the event of an attack, personnel are to observe Class 4 hazardous object containment procedures.