Spectre's Eye is a craftable set available in all armor types. When you cast a Magicka ability you gain Major Evasion for 3 seconds, increasing your area of effect damage mitigation by 25%. This effect can occur once every 6 seconds.
Spectre's Eye is part of the base game. The crafting station is located in Coldharbour (Deathspinner's Lair). You can craft any armor, weapon or jewelry of this set in any motif style you know, as long as you have 8 traits researched (per item). You can trade crafted pieces to other players. Each set item becomes bound on equip.