WoW Transmog — Browse All Transmog Sets
Browse all 3,100+ World of Warcraft transmog appearance sets. Filter by expansion, armor type (Cloth, Leather, Mail, Plate, Cosmetic), and PvP sets. Track your wardrobe completion across all expansions.
Browse transmog sets from raids, dungeons, PvP, and quests across all expansions. Filter by armor type (plate, mail, leather, cloth) and source. Track which appearances you own and which you still need via Battle.net sync.
Firelord's Vestments
Cloth set. Wrath of the Lich King. A pretty good investment for a cloth spell dps. It's the only Cata epic belt for clothies that has hit so you won't be replacing it until you're do...
Firelord's Vestments is a Cataclysm-era cloth transmog set obtained by crafting the 
Dreamless Belt through tailoring.
Gather Embersilk Cloth
Collect 160 
Embersilk Cloth, which converts into 32 bolts when crafted by a tailor.
Gather Volatile Materials
Collect 30 each of Volatile Life, Fire, Air, Water, and Earth (120 total volatiles).
Craft Dreamcloth
Use a tailor to craft 
Dreamcloth pieces from your materials. Dreamcloth is on a 7-day cooldown per region, but you can create each region's Dreamcloth on separate cooldowns to speed up gathering.
Craft Dreamless Belt
Once you have the required materials, have a tailor craft the Dreamless Belt using 32 Embersilk bolts and the Dreamcloth pieces.
Tips
This belt is the only Cataclysm epic belt for cloth casters with hit rating, making it a long-term investment for spell DPS until hard mode progression.