History
Mudbrute was one of the many steeds of Thor. They were one of eight who took Thor to Midgard and help defend it from an army of the undead, which had been summoned by the Enchantress. Thor agreed to pilot the Blood Colossus to fight the undead as long as the humans did not eat his horses when they died to allow them to reincarnate. The humans however betrayed him and by the time Thor returned they had eaten all the horses. Thor returned to Asgard with their remains and used them coupled with Asgardian magic to create Sleipneir.[1]