History
Rattatosk is a giant, monstrous squirrel that lives in Yggdrasil. He guards the Golden Apples of Idunn that grow on the World Tree and has the job to carry messages between the Eagle, perched at the top of Yggdrasil and Jormungand, the Midgard Serpent.[1]
Julie, Katie and Jack had to fight him when they came to collect the Golden Apples for Koil. Due to him being known as the Squirrel of Mischief, Katie expected the squirrel that would try to play tricks on them but learned quickly enough that in Norse mythology the word "mischief" has quite a different meaning. Rattatosk proved quite a match for the heroes, but eventually Katie was able to drive him off with her energy balls.[1]Attributes
Powers
Seemingly those of the Ratatoskr of Earth-616.
Abilities
Seemingly those of the Ratatoskr of Earth-616.