Did your Mage just got some sweet epic items? Then you must rune them! Runes are consumable items that get attached to your items. Runing your items can be a bigger upgrade than getting a tier 2 raid item.
Some of them can be crafted, others require reputation. Since not everyone has the required reputation I have provided a list of craftable, honored and glorified runes for your convenience!
All crafted runes require 3 dreaming stars (240p), 3 empyreal planar dust (6p), 2 brancing star (2p) and 1 ethereal shard (80p). Total cost therefore are about 330 platinum. Buy them on the Auction House or look for players that can craft them.