Rotting Lightbringer is a Unique Two-Handed Mace in Diablo IV Season 15. It comes from World drop (any difficulty, drop rate scales with Torment tier); Horadric Cube: Item Transmutation (Upgrade to Unique) - Common item of the same slot + 1 Enhanced Primordial Dust + 10 Primordial Dust (random Unique of that slot).
Every 10 seconds, Pulverize forms a puddle that deals [2-4]% of its damage as Poisoning damage over 6 seconds. Pulverizing the puddle splashes an additional [0.2-0.4]% of the puddle's total damage within the area and around it. (one guide wording: 'If no puddle is around you, Pulverize forms a puddle that guarantees its own Overpowers and deals (200-600%) of its normal damage as Poisoning over 7 seconds...')
| Slot | Weapon (2H) |
|---|---|
| Item type | Two-Handed Mace |
| Rarity | Unique |
| Classes | All classes |