Sanctified Bloodmage's Regalia (heroic)

Sanctified Bloodmage's Regalia (heroic) is the high end Tier 10 set for Mages.

Source
After obtaining a heroic Vanquisher's Mark of Sanctification from Icecrown Citadel 25-man, the Mage may visit Malfus Grimfrost In Light's Hammer or Rueben Lauren In Dalaran to purchase one.