Ball Lightning

Ball Lightning is a Mastery Lightning spell used by  in Diablo IV, loosely inspired by the Diablo III mechanic of the same name.

In-game
Ball Lightning, when cast, drifts slowly, piercing through enemies and most obstacles, until it travels its maximum distance or collides with a solid wall. Every tick, all enemies near it take Lightning damage.

With Enchantment, it effectively replaces the Crackling Energy Mana generation with an additional damaging effect, however, aiming it becomes near impossible.

Upgrade Nodes:

 * At the end of its path, Ball Lightning will collapse into Crackling Energy.

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

 * The icon of Ball Lightning was originally used for.