Written by d616 System co-creator and New York Times-bestseller Matt Forbeck (The Marvel Encyclopedia, Dungeons & Dragons: Endless Quest) and packed with illustrations by Marvel's incredible army of artists, the X-Men Expansion is jammed full of vital information about Marvel's most popular mutants, including new options for creating characters, new Traits, new Tags and new Powers! It also includes new profiles for dozens of characters from X-Force, New Mutants and Marauders, new full-color maps of famous X-Men homes, including the Xavier Institute, Krakoa and Arakko and plenty of plot hooks for an entire campaign. Answer the call and join the X-Men!