Huginn and Muninn are raven avatars granted to the bearer of the Knowledge Rune. They are magic creatures that are able to fly swiftly and silently. In addition, they can transform into much larger versions, capable of being mounted by up to two human-sized individuals.
The ravens were of personal importance to Asmodan Numitari. He used them to keep himself informed on the events occuring on Borendil since the Elves' extinction. Later, they were used as utilities for his duties as leader of the Order of Lost Histories, where they kept track of the progress of the various mercenaries hired by the Order.