Disintegrate

Disintegrate is an Arcane spell used by s in Diablo III.

In-game
Disintegrate conjures a limited-length (50 yards) beam that pierces through enemies and destructibles (but not any other obstacles). It deals Arcane damage with every tick to all enemies caught in the beam, but for every tick period the Wizard continues to channel it, the damage increases by another 250% damage as Arcane, up to 890% per tick full power after 2 ticks (normally 2 seconds). Stopping the channeling will reset the bonus. The Wizard may not move while channeling.

Killed enemies are disintegrated, leaving no corpse.

Runes:

 * Convergence: damage type changes to Fire and doubles the width of the beam.
 * Volatility: killed enemies have a 35% chance to explode for 750% damage as Arcane, 8 yards radius.
 * Entropy: beam turns to a cone (approximately 25 yards long and 120 degrees wide), increasing damage to 435%, and channeling buff to 340% per second (to a total of 1115% damage per tick).
 * Chaos Nexus: in addition to the beam, blasts all enemies within 15 yards of the Wizard for 115% damage as Arcane per tick.
 * Intensify: enemies hit by the beam suffer 15% more Arcane damage for 4 seconds.

Non-rune enhancements:

 * Taeguk (Legendary Gem): increases damage done by 2% per tick (+0.04% per rank) and armor by 2% per tick (rank 25 bonus), stacking up to 10 times.
 * Slorak's Madness (Legendary Wand): always increases damage of Disintegrate by 15-30% (re-rollable).
 * Mantle of Channeling (Legendary Pauldrons): while channeling Disintegrate, increases damage done by 20-25% and reduces damage taken by 25%.
 * Deathwish (Legendary Sword): while channeling Disintegrate, increases damage done by 250-325%.
 * Etched Sigil (Legendary Source): for every second of channeling, will also cast Energy Twister at the same target, and increases damage of Energy Twister by 200-250% while channeled.
 * Hergbrash's Binding (Legendary Belt): reduces Arcane Power cost by 50-65%.
 * Firebird's Finery Set (Set Bonus for 2 items): Disintegrate Ignites enemies, causing them to take 3000% damage as Fire per second until they die.
 * Firebird's Finery Set (Set Bonus for 4 items): channeling Disintegrate adds Combustion stacks that reduce the cooldown of by 2% per stack, stacks up to 50 times. The Wizard gains 80% damage reduction while maintaining Combustion stacks.
 * Firebird's Finery Set (Set Bonus for 6 items): increases damage done by 5000% while Ignite is applied to a target. Hitting an Ignited enemy with a non-channeled Fire spell deals Ignite damage multiplied by the current number of Combustion stacks.

Development
Inspiration for the spell was taken from the magic sets of Dungeons and Dragons.

Introduced in the trailer for the Wizard, Disintegrate is a spell that shoots a continuous beam of red energy through enemies, consuming mana all the while, similar to the Diablo II spells and Arctic Blast. However, unlike previous spells of this nature, Disintegrate actually grew more powerful for each target it passed through. Like all arcane spells, critical hits from Disintegrate would silence a target for a base duration of 4 seconds. Prior to Patch 2.1, it dealt a fixed amount of damage per second, until the introduction of a channeling buff.