The Hazardous Wastelands is the largest battlerina in terms of ares, but it isn't very popular due to the dangers.
The Hazardous Wastelands were created by followers of Archaeoza. They wanted to create the most dangerous battlerina in battleterra. So they chose a large Island off the coast of the battlerina. The island was extremely cold, slippery, had sharp rocks, and large ammounts of wind. Many penguins died trying to create it.