Twin Sisters is a medium armor set. When you block an attack, you have a 20% chance to cause all enemies within 5 meters of you to bleed for 8600 Physical Damage over 8 seconds. This effect can occur once every 8 seconds.
Twin Sisters is part of the base game and drops in Auridon in the Overland content. You can also find it on Guild Traders. Each set item is bound on equip. You can acquire medium armor, jewelry and weapons for this set in the High Elf motif style.