"You know, it's kind of hard to trust someone when you don't know who that someone really is."
The subject of this article has been deemed non-canon because it contradicts the established movie continuity of the Marvel Cinematic Universe, and thus should not be taken as a part of the "real" MCU world.
"Surtur's legendary harvester of worlds: the Worldkiller. Cross into Muspelheim and seek it out."
"How will I find it?"
"'Tis the harvester of worlds, Thor. Unlikely to be subtle."

The Worldkiller was a doomsday weapon created by Surtur, the ruler of Muspelheim.


Thor repelled an attack on Earth by the Fire Demons. Loki urged him that the only way to save the planet from becoming a smoking ruin was to enter Muspelheim and destroy the Worldkiller, Surtur's legendary harvester of worlds. Fighting his way through the Infernir, Thor destroyed each of the Worldkiller's supports, which led to the destruction of the Worldkiller itself.[1]


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