The Vanquisher

"Conqueror of the forbidden, triumphant over all foes."

 is a level 94 Legendary Item Set, available with the Forgotten Gods Expansion. The set supports an Arcanist - Oathkeeper build with a focus on Vire's Might and Callidor's Tempest.

The set pieces are not part of regular loot tables - each has a chance to drop (approximately 6%) from the Transcendent Chest at the end of a particular Challenge Dungeon (the relevant boss must be defeated to access the room containing the chest).

Pieces
set

Set Bonuses
2/4 Set
 * 20% Poison & Acid Resistance
 * 20% Aether Resistance

3/4 Set
 * 22 Aether Damage
 * +8% Health
 * +5 Energy Regenerated per second

4/4 Set
 * +3 to Vire's Might
 * +3 to Callidor's Tempest
 * -0.7 Second Skill Recharge to Vire's Might
 * 2 Meter Range to Vire's Might
 * 12% Reduced target's Resistances for 3 Seconds to Vire's Might
 * -30% Skill Energy Cost to Vire's Might
 * 1 Second Skill Recharge to Callidor's Tempest
 * Total Damage Modified by 45% to Callidor's Tempest
 * 22 Reduced target's Resistances for 6 Seconds to Callidor's Tempest