I tried hex purge. I felt the aoe was negligible compared to getting demon mastery up to 20 for a defiler. I switched to hex bane. I found it was slightly more useful on physical immune but a mediocre return on points when death marking in a cursed Hephaesto on most enemies. If I wasn’t using insight + phoenix + pride/might merc I’d use siphon for qol as a one point wonder.
Ended up dropping in a lot more points into blood oath to support a more aggressive play style and felt that made a more noticeable difference.
I think some of the guides were theorycrafting (see: arioc’s) and my experience hasn’t always marched up with their spreadsheets.
You’re always the best

Thanks a lot for that explanation.
I’ll have to try that blood oath as I feel like a glass cannon alot lolz.