Mangog is the sum total of the hatred of a billion beings that were once killed by the ruler of Asgard and the Norse Gods, Odin. Imprisoned deep beneath Asgard, Mangog is accidentally freed by the Rock Troll Ulik and goes on to wage war against Odin and the other Norse Gods on several occasions. Mangog proves to be physically unstoppable and is usually only defeated by exploiting Mangog's dependence on psychic energies (such as hatred, fear, or feelings of devotion) felt by other sentient beings to sustain itself. Without such a source, Mangog shrinks to near nothingness.
Powers and Stats
Origin: Marvel Comics (Thor #154)
Age: Thousands of years at the least
Classification: Manifestation of Concentrated Hatred; Ultimate Judgement of the gods
Powers and Abilities: Superhuman Physical Characteristics, Regeneration, Immortality (Type 8; Reliant on hatred), Energy Manipulation (Energy Projection and Absorption), Sealing (Sealed Loki in amber), Can survive in space
Attack Potency: Solar System level (Consistently stomped Thor in nearly all of their encounters together. Easily stomped a Destroyer powered by Freyja. Stated by Ulik to be a hundred times stronger than him, although this may be hyperbolic)
Speed: Massively FTL+ (Can fight and overpower Thor)
Lifting Strength: Unknown
Striking Strength: Solar System Class
Durability: Solar System level (Consistently shown to be extremely resilient against attacks from Thor and even the Destroyer. Even when attacking the beast's more vulnerable inside, Thor still had to use the Anti-Force, one of his most powerful attacks, to kill the Mangog)
Standard Equipment: None
Weaknesses: Mangog will shrink to nothingness without a consistent source of feelings such as fear and hatred to feed on.
Note 1: Mangog's supposed death by being thrown into the Sun at the end of Mighty Thor #705 should not be used for a downgrade. In the same storyline, Mangog stomped Odin, who stalemated the galaxy-sized Mother Storm, but also got damaged by Jane Foster Thor, who in turn had trouble against the Silver Samurai. His death is therefore an obvious Plot-Induced Stupidity.
Note 2: Before making any changes to this page, please read and follow the Power-scaling Rules for Marvel and DC Comics.