Arcaida was the teleporting base of Tyrax. He teleported it into the Savage Land and also became the base of his minions, the Savage Land Mutates. Here, they rebuilt the Mutagenic Machine and created dinosauroids. After it was stormed by Badrock, Ka-Zar, Wolverine, and Zabu, the villains were forced to abandon the city. Despite Tyrax leaving Earth, Aracdia remains in the Savage Land.
- Savage Land Mutates (formerly)
- Tyrax (formerly)