At lv 105 I am using this spell. I checked with and without to verify dmg. the difference is 12 damage between having and not having this buff up. I do have max DS AA ( Intense Hatred rank 27) as well as 48/35 Damage shielding Mod. ( Damage was 452 without and 464 with, so yeah...)
So not sure what is going on with this spell but the info here needs to be updated and The Devs prolly need to rebalance a few things lol.
Edited, Dec 7th 2015 9:22am by DarkVendetta