Discard an Underworld character card >>> Blackheart cannot be stunned while attacking a character with cost of 4 or less or while defending against a character with cost of 4 or less.

• Collector Number: MMK-138
• Rarity: P
• Card Type: Character
• Team Affiliation: Underworld
• Attack Value (ATK): 14
• Defense Value (DEF): 10
• Recruit or Threshold Cost: 6
• Icons: [Range]