Medusa is the queen of the Inhumans, with such influence that she can have another Hero perform any Action out of turn. Using trichokinesis she can manipulate her hair, using it to defeat Thugs or rescue Civilians. Medusa has a strong bond with Black Bolt, her husband, allowing her to use a card he played at any point as the previous card in the Storyline. She also has a close connection to the Fantastic Four, so if any of them are in play she can use the Actions on their Fantastic Four card.
https://www.kickstarter.com/projects/cmon/marvel-united-multiverse/posts/3712119
