The Casket of Ancient Winters: The Casket of Ancient Winters was a relic and weapon that once belonged to the Frost Giants of Jotunheim who used it to vanquish enemy armies and conquer enemy realms. It is capable of the following power stunts:
-Freezing: When opened, it projects a CL1000 icy wind that can freeze whole landscapes and plunge an entire world into a new ice age.
In 965 A.D., Laufey of Jotunheim used the power of the Casket in an attempt to enslave Earth by causing a new Ice Age, but he was defeated in battle by Odin, and the relic was taken by the Asgardians and brought to Asgard, where it was kept in Odin's Vault along with many other powerful relics.
During Thor's coronation, Frost Giants, with the aid of Loki, tried to steal the Casket, but they were vaporized by the Destroyer. When Loki began suspecting his origins as a Frost Giant, he picked up the Casket, which dispelled the magic that gave him his Asgardian appearance and revealed his true appearance.
Loki soon took the Casket for himself; once he gained the throne of Asgard, he used the power of the Casket to freeze Heimdall, who was opposing him as a ruler. He then froze the Bifrost Bridge open with the Casket's power, so that the Bridge's energy would build until it destroyed Jotunheim, intending to please Odin and be named the rightful heir of Asgard. When Thor destroyed the Bridge with Mjølnir to prevent this from happening, Loki willingly fell into the black hole left behind, apparently taking the Casket with him.
The Casket was eventually recovered and returned to Odin's Vault. Years later, Hela passed by the Casket and called it "weak". The Casket would later be destroyed, along with every item in Odin's Vault, during the Destruction of Asgard.
