Dice Masters: World&rsquo;s Finest Gravity Feed (90 Count) Number of players: 2 Each hero also has one or more character reference cards, which show the special abilities for the characters based on the die rolls. Different versions of these cards are available in booster packs, allowing for more customization of your team. Players use these dice to collect energy, recruit new heroes, and battle head-to-head. Over 30 heroes and villains make up the new card and dice for this expansion.