Been running this build for a while and I really like it with 4 pc set tal rasha and Thunderfury (Been pretty lucky with drops) It is a melee arcane based variant, I prefer spectral blades/thrown blade as generator but it's interchangeable if ud rather have lightning or MM for a bit more range.
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My Gear/Build: http://us.battle.net/d3/en/profile/eynd-1583/hero/32250794
Can solo t3 rifts pretty easily with this, t4 with some difficulty. Anyways happy hunting and gl