Do it?

Sure thing looks like it does, but not certain...

Did you mean Spirit Barrage, for Witch Doctor? Do not recall any skill called Spirit Barrier. But if you did mean Spirit Barrage:

Based on the descriptions for the item, I am going to say no, Depth Diggers do not apply to Spirit Barrage.
The description states that it must be a primary skill that generates resource, and Spirit Barrage is a Mana spender.

This post was edited by Beacon on Oct 2 2016 09:05pm

Yes but its also a mana gainer, i tryed it vs one 19% cold damage pants and Depth digger seems to be superior.

Go for it then =)

No its doesnt

if u put pants on and check urs stats u can see its add bonus dmg to all primary skill exactly like u had haunt % dmg on shoulder ( example pants give 94%, on ur char u gonna have Poison dart 94%, frog 94%, etc etc

But it double my damage when i have mana regen rune etc. Ty to new items i have like 4 runes activated on that skill, but still 3 patches later my jade still rapes all my other wds xD