The Destroyer is an enchanted suit of armor forged by the King of the Norse gods, Odin. When it first appeared it was hinted that the Destroyer had been created as a weapon to face some dark menace from the stars. First seen in the Temple of Darkness in Asia, the Destroyer is used by Thor's arch-foe Loki against him. Animated by a nearby lifeforce, it battles Thor to a standstill, Loki is forced to intervene and stop the Destroyer using lethal force when Odin threatens to kill him. Thor then buries the armor under a mountain slide. The armor is briefly used again by Loki in a failed bid to kill Odin, before being salvaged by Karnilla, Queen of the Norns, and animated by Thor's companion Sif, who attempted to use it to battle the villain the Wrecker when Thor was temporarily deprived of his godhood and powers. The Destroyer, however, attacks Thor, with the battle ending when Sif breaks her connection with it. Thor later offers the armor to the World Devourer Galactus, in exchange for releasing his current Herald, Firelord. Galactus accepts, and the Destroyer acts as his Herald, detecting Counter-Earth for the entity before going on to battle the Fantastic Four. The Destroyer is finally recaptured for reuse by Loki.
When the menace from the stars is revealed to be the Celestials, Thor learns the Skyfather gods (Odin, Zeus, etc.) pooled their resources a millennium before to create the Destroyer as a weapon to stop the arrival of the so-called Fourth Host of Celestials. At the penultimate moment, Odin enters the Destroyer armor and then absorbs the life essences of all present in Asgard (with the exception of the absent Thor), growing to a height of 2,000 feet (610 m). The Destroyer then draws the Odinsword, and together with the Uni-Mind confronts the Fourth Host. The Celestials, however, dissipate the Uni-Mind and melt the Destroyer armor into slag, scattering the life-forces of the Asgardians. The initiative of the Skymother goddesses pacifies the Celestials, and Thor revives his people via Odin by using a fraction of the gathered power of the other Skyfathers. Loki eventually finds the remains of the Destroyer and reforms it in a bid to destroy Thor, who has been reduced to pulp after a triumphant but destructive battle against the Midgard Serpent. The Destroyer, however, cannot kill Thor due to a curse induced by the Norse Queen of the dead, Hela which made his bones brittle and incapable of healing or dying. Thor wrests control of the armor from the host—an enthralled Frost Giant named Siggorth—through sheer force of will and goes on to defeat Loki. The Destroyer - depicted as thinking and speaking for the first time - tries to take back control from Thor but fails. Wearing Thor's raiment and wielding his hammer Mjolnir, the Destroyer confronts Hela and forces her to restore Thor to human form. The Destroyer is left in a crystal in Hela's realm, and is eventually animated by the goddess Lorelei. Lorelei battles several Asgardians and subsequently becomes trapped in the dimension of the Great Beasts.
Appears in the movie Thor, the Avengers movie doesn't give information, but a comic book based on him says that the weapon Agent Coulson used was made after reverse engineering the destroyed Destroyer. Appears in the cartoons: Ultimate Spider Man, Avengers Assemble. In the Lego Marvel Super Heroes game, it looks incredibly different to the point that the whole resemblance is the fact that if you look at the head from the front it has the optical illusion that the head is the same as in the movie.