The Spellweave Robe (made by tailors) has the same design and colouring as the Digested Silken Robes from Naxx. In fact, quite a few of the items may be obtained through tailoring.

Head: Wrathful Gladiator’s Mooncloth Hood
Shoulder: Mantle of the Fatigued Sage
Chest: Digested Silken Robes
Waist: Spellfire Belt
Hands: Spellweave Gloves
Feet: Infernoweave Boots
Weapon: Lok’amir il Romathis
Off-Hand: Lordaeron Medical Guide

spellweave

Alternate Options
Shoulder: Mantle of the Elven Kings
Waist: Malefic Girdle
Feet: Socrerer’s Boots
Weapon: Staff of the Shadow Flame
Wand: Tirisfal Wand of Ascendancy