Set Bonuses:

2 pieces: +200 Armor.
4 pieces: Increases damage and healing done by magical spells and effects by up to 23.
6 pieces: Chance on spell cast to increase your damage and healing by up to 95 for 10 seconds.
8 pieces: +8 All Resistances.

Bindings of Elements
Binds when equipped
Wrist            Mail
148 Armor
+10 Intellect
+10 Spirit
+7 Stamina
Requires Level 52
  Drops off: Splintered Skeleton (Scholomance), Crimson Monk, Crypt Crawler and Crypt Beast (Stratholme)




Coif of Elements
Binds when picked up
Head             Mail
297 Armor
+23 Intellect
+13 Stamina
+12 Spirit
+7 Strength
Requires Level 57
  Drops off: Darkmaster Gandling (Scholomance)




Gauntlets of Elements
Binds when equipped
Hands            Mail
218 Armor
+16 Spirit
+10 Intellect
+9 Strength
+4 Stamina
Requires Level 54
  Drops off: Pyroguard Emberseer (LBRS, Hall of Blackhand)




Pauldrons of Elements
Binds when picked up
Shoulder            Mail
266 Armor
+15 Intellect
+14 Stamina
+6 Spirit
+6 Strength
Requires Level 55
  Drops off: Gyth (LBRS, Hall of Blackhand)




Vest of Elements
Binds when picked up
Chest            Mail
370 Armor
+20 Intellect
+20 Spirit
+13 Stamina
Requires Level 58
  Drops off: General Drakkisath (LBRS, Hall of Blackhand)




Boots of Elements
Binds when picked up
Chest            Mail
240 Armour
+17 Spirit
+9 Agility
Requires Level 54
  Drops off: Highlord Omokk and Urok Doomhowl (LBRS, Hall of Blackhand)




Cord of Elements
Binds when equipped
Waist            Mail
193 Armor
+17 Intellect
+19 Strength
+7 Spirit
+6 Stamina
Requires Level 53
  Drops off: Bloodaxe Evoker, Firebrand Pyromancer, Rage Talon Flamescale, Smolderthorn Witch Doctor, Firebrand Invoker, Quartermaster Zigris and Scarshield Warlock (LBRS, Hall of Blackhand), Rage Talon Flamescale (Blackrock Mountain)




Kilt of Elements
Binds when picked up
Legs            Mail
315 Armor
+20 Spirit
+15 Intellect
+12 Strength
+7 Stamina
+6 Agility
Requires Level 56
  Drops off: Baron Rivendare (Stratholme)