Odin created it to be used against the world-judging Celestials, whom he encountered over 1,000 years ago and foresaw their return, believing the Celestials would destroy humanity should they fail judgment. Odin concealed the armor within a temple he built concealed in a plateau in far-off Indochina, hoping it would be out of reach from those who would misuse it. Legend has it that the Destroyer armor would one day, be activated at the time of Ragnarok.
There it remained until recently, Odin's adopted son, Loki, seeking vengeance against Odin's true son, Thor, destroyed the plateau and arranged for Buck Franklin, a hunter, to unwittingly activated the armor and battle Thor.
Movie appearanceThe Destroyer armor later appeared in the live-action movie Thor as the tertiary antagonist. The evil God of Mischief Loki who assumed the throne of Asgard from his slumbering, adopted father Odin, activated the Destroyer from Odin's armory and sent it to Earth under his new order: eliminate Thor and anything else that gets in its way.