Earth's mightiest super heroes - the Avengers - finally get the big-book treatment that fans have been waiting for! Avengers Expansion features many of Marvel's most popular super heroes - like Black Widow, Captain America, Hawkeye, Iron Man, Hulk andd Thore - plus countless other Avengers and their most villainous fores. It also includes rules for how to dcraft iconic weapons (like Cap's shield or Thor's hammer), build your own headquearters (like Avengers Tower), and handle battles between large groups of fores. Get your players together. It's time for your Avengers to assemble!