Interacting with the familiar will give you an option either to chat or to teleport to level 40 wilderness. The teleport to the Lava Maze is very close to the Hobgoblin Mine with its abundance of adamantite, mithril, and coal, not to mention the runite mine to the north. It is also the fastest way to access the lever to King Black Dragon's Lair for the 10% damage boost, as well as being the quickest way to the Muddy chest. It occasionally strikes targets with a magic based attack, which looks exactly like its ebon thunder special move and can do more damage than its standard attack.