It (sometimes capitalized as IT), more commonly known as Pennywise the Dancing Clown, was the main antagonist of the novel and the film of the same name. It was portrayed to be a shapeshifting and malevolent entity millions (possibly billions) of years old, and with no exact gender or solid identity; thus why it is called "IT".
It was a mysterious evil being from an unknown realm/dimension outside the regions of space. When It came to planet Earth to feed, It's favorite disguise was that of a colorful and wisecracking circus clown named "Pennywise". It could also morph into any other being or thing it pleased, generally based on its target's loved ones or friends to lure them into traps or simply appear to them as their very worst fears and nightmares.
It preferred to attract children, so it could capture and kill to devour them. It was capable of killing every kind of human but mostly preferred to prey upon innocent human children because they were easier to manipulate and scare. According to the creature, frightened flesh tastes better.
Powers and Stats
Tier: At least 7-C, Likely Higher | Low 2-C
Name: IT, Pennywise the Dancing Clown
Origin: The Dark Tower
Age: Transcends time
Classification: Ancient "demonic" entity
Powers and Abilities: Superhuman Physical Characteristics, Shapeshifting, Illusion Creation, Invisibility, Regeneration, Telepathy, Mind Control, Teleportation, Telekinesis, Weather Manipulation, Light Manipulation, Soul Manipulation, Immortality (Type 9), Non-Corporeal, Reality Warping, Spatial Manipulation, Time Manipulation
Attack Potency: At least Town Level, Likely Higher (Created a raging hurricane, IT in its frustration at being wounded lashes out by blowing up the sewers, stores, and transformer Bboxes as well killing many people) | Universe Level+ (IT is the natural enemy of Maturin)
Lifting Strength: Superhuman | Unknown
Striking Strength: Unknown | Unknown
Stamina: Unknown | Unknown
Range: Unknown | Universal+
Standard Equipment: None notable
Weaknesses: Underestimates and scorns all of mankind. It is sensitive to psychic energy, so collective belief and courage can overcome it. The novel also states that when It transforms into a shape, It must obey the laws of that form. It goes into hibernation for approximately 30 years between killing cycles.
Key: Pennywise | True Form