Lightning Spear

Lightning Spear is a Conjuration Lightning spell used by  in Diablo IV.

In-game
When cast, summons an autonomous lightning spark that homes at enemies, piercing through them in wide arc, potentially hitting more than one per turn. It can move through obstacles and even solid walls. It tries to hit a different target with each turn, but if only one remains in range, will circle around to hit them again and again.

It has no upper limit on targets or damage, only by time. Against very dense crowds, it can deal damage almost non-stop, but its wide turning radius (it cannot perform the classic 180-degrees turn) prevents it from hitting separated targets quickly.

Talents:

 * Potent Warding (5): Elemental damage and resistances are increased by 2% per point.
 * Devastation (5): Critical strike chance is increased by 2% per point.
 * Precision Magic (5): Elemental damage increases over time, up to a maximum of 5% per point after 3 seconds. Attacking resets this effect.
 * Inexorable Reach (5): Damage is increased by 3% per point against enemies outside of melee range.
 * Ceaseless Bolts (5): Lightning Critical Strikes increase Critical Strike chance by 2% per point for 5 seconds, up to 10% per point.
 * Overcharge (3): Lightning damage have a 3% chance per point to create Crackling Energy.
 * Convulsions (5): Lightning skills have up to a 2% chance per point to Stun enemies for 3 seconds.
 * Stagger (5): Enemies deal 4% less damage per point for 3 seconds after being hit by Lightning skills.
 * Crackling Aura (5): Deals Lightning damage to a random nearby enemy every 11 seconds (recharge time reduced based on allocated points).
 * Shocking Strikes (1): Each time your Lightning skills hit an enemy, they take 8% increased Lightning damage for 1.5 seconds, stacking up to 40%.
 *  (1): Lightning damage is increased by 40% against enemies within melee range.
 * Burning Resonance (5): Damaging a Burning enemy has up to a 25% chance to restore 2% Mana per point.
 * Frostbite (5): Damage against Chilled enemies is increased by 2% per point.
 * Endless Winter (1): Critical strike chance against Chilled and Frozen enemies is increased by 30%, but Chill effects no longer Freeze.

Trivia

 * This spell is reminiscent of, if not inspired by, the Yaka Arrow in Marvel comics.