Durgan-Refined

 is an enchantment for weapons in Pillars of Eternity, introduced in The White March - Part I expansion. It can be applied by player by enchanting the item.

Despite being applicable by player, Durgan-Refined is unique in its own way, as it requires no free enchantment slots ("anvils") on enchanted item. However, a special (and limited) ingredient is needed for enchanting process: Refined Durgan Iron Ingots.