Apparently this haste increase is gained by killing pets as well. I know that most of you are PvE players so I assume you know something about this. Does the haste only increase rune regeneration or does it actually affect DoT's and the Gargoyle? If yes this ability could be ridiculously overpowered when fighting Warlocks. You just need to spread diseases and have the pets in DnD to get them to 50 % HP and then just Soul Reaper and kill it. So if I have all procs up my damage, especially from the gargoyle will be tremendous.