Bone Spear (Diablo III)

Bone Spear is a skill in Diablo III.

In-game
The skill works very similarly to its classic version: a piercing projectile that damages all enemies in a roughly 80 yards long line and 10-12 yards width, only stopping if it hits impassable terrain or solid wall.

Runes

 * Blighted Marrow: Damage type changes to Poison, and the Spear's damage is increased by for each enemy Bone Spear passes through, so each target takes more damage than the previous one.
 * Teeth: a remake of the Diablo II skill, instead of a single Spear, launches razor sharp teeth in a 30 degrees wide cone that deal damage as Physical to any enemy they reach. Maximum range decreases but the area of effect increases due to increased width.
 * Crystallization: Damage type changes to Cold, and each enemy hit has their attack speed reduced by, while the Necromancer's attack speed is increased by for  seconds, stacking up to  times.
 * Shatter: Instead of piercing, the Spear now detonates on the first enemy hit, dealing damage to all enemies within  yards.
 * Blood Spear: Damage is increased to, but each cast costs of maximum Life. Visually, Spear turns into Blood Spear.

Non-rune enhancements

 * Gelmindor's Marrow Guards (Legendary Bracers): Bone Spear cast from Simulacrums deals 300-400% increased damage.
 * Scythe of the Cycle (Legendary Scythe): deals 350–400% additional damage while is active but each cast reduces the remaining duration of Bone Armor by 4 seconds.
 * Maltorius' Petrified Spike (Legendary Two-Handed Scythe): increases Bone Spear cost to 40 Essence, but it deals 550–700% additional damage.
 * Trag'Oul's Avatar Set (Set Bonus for 6 items): Blood Spear deals 3800% increased damage. Healing from skills is increased by 100%.
 * Pestilence Master's Shroud Set (Set Bonus for 4 items): each enemy hit by Bone Spear reduces the Necromancer's damage taken by 2% for 15 seconds, stacking up to 50%.
 * Pestilence Master's Shroud Set (Set Bonus for 6 items): each corpse consumed by any skill grants an Empowered Bone Spear charge that increases the damage of the next Bone Spear by 3300%, storing up to 100 charges, each cast consuming 1 charge.
 * Masquerade of Burning Carnival Set (Set Bonus for 6 items): damage increases by 6,000% for Spears cast by the Necromancer and by Simulacrums.

Passives

 * : grants a 30% chance to trap all enemies hit in a Bone Prison, immobilizing them for 3 seconds.
 * Serration: deal 1% increased damage for every 1.5 yards between the Necromancer and the target (up to 20% at 30 or more yards).
 * Blood for Blood: removes the Life cost of Blood Spear rune when picking up a Health Globe, storing up to 10 charges.
 * Blood is Power: every 100% of maximum Life drained by the Blood Spear rune will reduce all remaining cooldowns by 20%.
 * Rathma's Shield: for 4 seconds after casting Land of the Dead, Army of the Dead or Simulacrum, Blood Spear rune will drain no Life on cast.