River of Bones is one of the Necromancer Passives which is unlocked at level 30. Requires Acolyte level 20 and masteries unlocked.
Description
You and your minions have 20% increased critical strike chance and 4% of crit damage leeched as health per point.
Your minions have 20% increased health leech per point.
Your minions have 20% freeze rate multiplier per point.