Gulltoppr, God of War Wiki

Gulltoppr is Heimdall's Gradungr steed that serves as his official mount to protect the kingdom of Asgard. In Norse Mythology, Gulltoppr or Gulltop is the horse of Heimdall, guardian of the Bifröst bridge. This fast and strong horse is able to fly even without wings. At some point, Gulltoppr was defeated and claimed by the God of Foresight Heimdall to act as his personal mount. While Heimdall claims to have done so "fair and square", it is unknown whether he did so or used his gifts of intuition

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