If you want to see Revenant used in a build, I use in My Skelemancer Ritualist build.
It’s much more worth it for Ritualists than Occultists because:
- Occultists are much better served with the Lost Souls Set, especially with the large health and speed bonuses the Skeletons get from completing the set.
- Ritualists like the Dying God + Time Dilation devotion route better because it gives better uptime for Primal Spirit, so Revenant is right up that alley to help get consistent flat RR on multiple targets.
- While Wendigo Totem is the best overall healing mechanism, as Maya already pointed out, getting Reap Spirit + Bone Harvest + Devouring Swarm is very difficult to do, so having additional passive leeching helps in the moments where you can’t put down a Wendigo Totem.
So basically, it’s a much nicer devotion to use for Ritualist Skelemancers, but I would not recommend it for Cabalist Skelemancers, especially since the Lost Souls set is much improved over a year ago when I made my Ritualist.