Legendary RE: Piercing Shadows [New Version]
Your physical Hunter abilities now deal additional Shadow damage, scaling with your Shadow spell damage, and grant you Piercing Shadows when they critically hit, which increase the damage of your Mind Blast, Shadow Word: Pain and Vampiric Touch abilities by 30% and 10% of your Agility, stacking up to 3 times. Requires Shadowform to be active.
Your Mind Blast no longer reduces healing done to the target but your Black Arrow has a 30% chance to trigger Darkness whenever it deals damage (requires rank 3 of the Darkness talent). Additionally, your Instant Poison can also trigger your Shadow Weaving talent (if known) and your Steady Shot extends the duration of Black Arrow by 3 seconds, up to its maximum duration.
Killing an enemy afflicted by Black Arrow refreshes its cooldown and causes an explosion of shadow magic, scaling with Mind Blast modifiers, to all nearby enemies.
Another suggestion that would greatly benefit hunter-hybrid builds like this one: change the Mental Quickness talent so that it also increases your bonus spell damage based on your ranged attack power (not just melee attack power).
here is the link to a build based on this RE: https://ascension.gg/v2/builder/area-52/overview/FwVgHAbMEOxgnKAjEqKDMAGY8IgEyb7D4QAs6oE5SwctBMMJYZxSYIa6qIwYmJMyTwYZbAPjsyIMqDJIALsXR4wi2uhAENwdITK7q6RZXRlYuqYcowUpvaphX8IB1pjwXJykkwQTTS1DWj8YCAd4Hgdwr2IozAcyeC8+KJtgMKV49C8zVUSGNgcwV0U0-DzgficyAFNaVnAYBuALCCRWhVI64gtwOsomiHwupEqu2E7aUVEUQbbzMFbcAnhMBqA