Helm: Spellblade's Pointed Hat

Armour: Spellblade's Traveling Attire

Gauntlet: Spellblade's Gloves

Leggings: Spellblade's Trousers

Where To Find: 

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The armor set drops from Sorcerer Rogier, who can be found within Roundtable Hold. Defeating Sorcerer Rogier yields these pieces of armor.