Applying These Concepts to Diablo 4 Items Key Diablo 4 Activities1. Farming Baneful HeartsBaneful Hearts fuel Blood Maiden summons and subsequent rewards, so farming them efficiently is critical. High-risk, high-reward: Targeting elite Helltide Commander events or Harbingers yields more Baneful Hearts but takes longer and is more dangerous. Lower-risk, faster: Clearing standard Helltide...