Dark Shard

The Dark Shard is a crafting material that is used to create the Dao of Pow. It drops from Dark Mummies which spawn only in Corrupted or Crimson deserts. It has a 10% chance to drop. The equivalent for the Hallow is Light Shard which drops from Light Mummies.

Trivia

 * The Dark Shard represents the "Yin" of "Yin Yang" or Taijitu on the Dao of Pow.