Wizards march to their own tune when choosing Legendary gems.Enforcer is naturally chosen by pet classes the common pet specs of Witch Doctors and Demon Hunters make the gem extremely popular among those two classes, and little used elsewhere.With the current bug for the gem preventing it from activating off of item procs, it has almost no usage among Monks. The high usage among Demon Hunters helps boost its popularity. Bane of the Trapped is second in popularity among the top 25% of softcore players, although it is a little less popular among other groups.It provides a solid damage boost, especially in elite-heavy sections of the game like Nephalem Rifts and Greater Rifts. Bane of the Powerful takes the top spot for the most popular Legendary gem among for all the classes combined.Each time these states alternate, you have a 30% chance to dispel a harmful effect from yourself. Command increases all other skill damage by 24%. Power increases your Primary Attack damage by 24%.

Power & Command: Power and Command alternate states every nine seconds.

Increases all damage you deal by 12% for three seconds. When fully-charged, your Primary Attacks release chain lightning, dealing 280% base damage + 1134 to nearby enemies.

Lightning Core: Your Primary Attacks and movement slowly charge you up with electricity.

Each enemy can only be affected by agony once every 20 seconds.

Each nearby enemy afflicted with agony increases your Attack Speed by 6%. Everlasting Torment: Your critical hits inflict agony, dealing 30% base damage + 122 every second for six seconds.Also, increases all damage you deal to Elite monsters by 6%. Fervant Fang: Each time you damage an enemy, increases the damage it takes from your attacks by 2.4%, up to a maximum of 24% at 10 stacks.Several Legendary Gems can be used to great success for any class.

Crusader legendary gems diablo 3