The Aspect of Efficiency is a Resource Aspect. It can be imprinted on Rings. It can only be used by Sorcerers.
Effect
Casting a Basic Skill reduces the Mana cost of your next Core or Mastery Skill by [10 - 25]%.
How to get Aspect of Efficiency
The Aspect of Efficiency can be unlocked in your Codex from
Domhainne TunnelsThe best way to get Aspects is to gamble your
Murmuring Obols
Purveyor of Curiosities. You can use our handy Aspect Gambling Tool to see which item type is best to gamble for this Aspect.
Legions
Helltide