Board Thread:Suggestions forum/@comment-32865299-20171219165343/@comment-33185350-20171219172826

Ents would be able to take apart any bricks. They could get roots between them and pry them apart. The same goes for cobblestone and probably regular stone. Though they would be incapable of destroying obsidian. As far as I can tell it’s the closest thing in Minecraft to the material Orthanc is said to be built of.