Dual Ether

"Fast and precise. The Ether Sword cuts so cleanly that it was considered by the Tenno to be a more humane weapon for 'cleansing' infested allies. Capable of hitting multiple targets."

- In-game Description.

The Dual Ether swords are a pair of dual weapons capable of hitting multiple targets in a single attack.

Characteristics
Advantages
 * Hits multiple targets
 * Ignores Armor
 * Staggers enemies on every hit
 * Jump attack knockdowns enemies, even bosses
 * Deals triple damage to non-Ancient Infested
 * Deals triple damage on slide attacks to Corpus (possibly a bug)

Disadvantages
 * Has no polarity slots
 * Jump attack has little to no AoE range

Acquisition
The Dual Ether swords can be purchased for 175. Its blueprint can be purchased for 20,000.

Rush build:  35

Recommended Mods
Charged Attack Build

Killing Blow - Charge Damage.

Reflex Coil - Charge Speed.

Sundering Strike - Armor Piercing Damage.

Molten Impact - Fire Damage.

North Wind - Freeze Damage.

Fury - Fire Rate and/or Shocking Touch - Electricity Damage

Normal Attack Build

Fury - Fire Rate.

Pressure Point - Melee Damage.

Sundering Strike - Armor Piercing Damage.

Molten Impact - Fire Damage.

True Steel - Critical Chance Increase.

Organ Shatter - Critical Damage Increase.

Trivia
The Dual Ether swords were released on April 12, 2013 with update 7.7.3.