Tal Rasha's Threefold Way

5-piece set Sorcerer

2 pcsOnce per Cast, damaging enemies draws on Tal Rasha's power, triggering a Mastery Skill, each element has a 6 second Cooldown: Frost Skills trigger Blizzard Pyromancy Skills trigger Meteor Shock Skills trigger Ball Lightning
3 pcsCasts and damage grant 30% All Resistances per element for 12 seconds.
5 pcsTal Rasha's power now unleashes all Mastery Skills and grants a different element 100% increased damage for 12 seconds, stacking up to 2 times.

Set Pieces