Executioner’s Blade is an Ability Altering Set in ESO, available as a drop from the Vateshran Hollows Arena.
Pearls of Ehlnofey is a Mythic Item in ESO, obtainable as a reward from the Antiquitiies activity.
Ring of the Pale Order is a Mythic Item in ESO, obtainable as a reward from the Antiquities activity.
Vateshran Hollows Sets are Armor Sets that drop in the Vateshran Hollows Arena in normal and veteran difficulty.
Markarth Sets are Overland and Crafted Armor Sets from the Markarth Zone that was added with the Markarth DLC.