The team-up keyword names two characters. A card with the team-up keyword can only be played if both of the named characters (hero or ally) are in play.
- During deck building, you can add the team-up card only if your identity matches at least one of the character names.
- The hero and alter-ego names are considered different names for the team-up. E.g. Young Love requires Gwen Stacy and Mile Morales, which means you hero(es) have to be in alter-ego(s). Allies count as having both names.