Tormentor is a heavy armor set. When you deal damage with a Charge ability, you gain 3642 Physical and Spell Resistance and taunt the enemy to attack you for 15 seconds.
The Tormentor set is part of the base game. It drops in Banished Cells I and Banished Cells II in Auridon. Each set item is bound on pickup. You can acquire heavy armor, weapons and jewelry of this set in the Xivkyn motif style.