Once you reach level 50 and have chosen a Build for your Sorcerer, you will want to start picking out the best weapons to complement it. The weapons or Legendary Aspects are designed to enhance either a specific Skill, a group of Skills, or your overall damage. Some of these will be best for a specific Build, but many will be good for most, if not all Sorcerers.
Best Sorcerer Legendary Aspects
Storm Swell Aspect
(Offensive Aspect)
Increases the damage you deal to Vulnerable enemies when you have a Barrier up.
Best Build: Ball Lightning Build
This will give you a consistent damage boost.
Conceited Aspect
(Offensive Aspect)
Increases the damage you deal to enemies when you have a Barrier up.
Best Build: Arc Lash Build and Firewall Build
This will give you an overall damage boost.