The UNSC Skidbladnir was a Phoenix-class colony ship used to colonize the planet Harvest. Its onboard AI construct was Loki. Once the initial colony on Harvest was established, Skidbladnir remained in orbit for more than a year to assist in the construction of the basic infrastructure for the Tiara and its seven space elevators. Once the task was completed, the ship landed on the planet's surface and was scrapped for materials. The ship's power plant was then used to power the capital city of Utgard.