Boulder Class dragons are tough and associated with the earth. They can eat rocks, which many of them melt within their stomachs and regurgitate as lava blasts. Although they have small wings compared to their body size, they are able to fly as fast and as high as most other dragons can.
The dragon species included are:
• Catastrophic Quaken
• Crimson Goregutter
• Eruptodon
• Grapple Grounder
• Groncicle
• Gronckle
• Hotburple
• Screaming Death
• Sentinel
• Shovelhelm
• Snafflefang
• Thunderpede
• Whispering Death