I was looking at playing a meshed Shadow Priest and Affliction Warlock, and was surprised to see a lack of overlap available between them. Haunt, for example, specifically only works with warlock spells. Vampiric Embrace only benefits from priest's spells. This bummed me out.
Now this doesn't necessarily bridge that gap, but it does incentivize leaning harder into [color=purple]shadow[/color] damage-over-time generically. It feels like a nice balancing point to me to have a check on quantity of effects to grant an always nice buff, while also putting a limiter on effectiveness based on number of targets hit. I could also see an increased CD on Soul Swap as a potential limiter.
Thoughts? Suggestions?