This build use Storm Brand for the primary skills Gem if offers 731k DPS. Storm Brand currently functions with Spell Echo Support so far as repeating the original cast of the brand. The more casting speed multiplier on spell echo does NOT, however, affect the activation speed of the brand once attached to a target.
Build PoB Link
Build Skill Tree
Shield Storm Skill functions and interactions
Maximum Active Brands: All brands share a limit of three (3) active brand limit. This can be split between the two brand skills (2-1) or all of one type. Passive skills can increase the number of active brands that are allowed to be active at a time.
Maximum Brand Attachment: By default, you may only have one brand of any kind attached to a single target at any time. Taking the Keystone Runebinder allows you to place a second brand on a single target. Like the Active Brand limit these brands may either be split (1-1) or both the same type of brand.
Spell Echo: Storm Brand currently functions with Spell Echo Support so far as repeating the initial cast of the brand. The more casting speed multiplier on spell echo does NOT however effect the activation speed of the brand once attached to a target.