Shuffle the abilities and attributes of a blue- or green-quality weapon or armor under level 45. The values will be redistributed according to the item's level.
OR...
Re-select a single random ability of an orange- or yellow-quality weapon or armor crafted by Sprites. The other abilities will remain the same.
Warning: Only works on orange/yellow-quality gear crafted by a Sprite, yellow-quality capes and trinkets, and green- and blue-quality mob drops. Does not work on quest rewards.