https://youtu.be/mQBz6MSU7Z4[/yt]FOR LARGER GROUPS ONLY!
5 Durok's Bane, 5 Fasalla's Guile, 2 of any set. 55 points into befoul. Fasalla's debuff stacks with major defile from Durok's bane.
Skip to end of video for examples of the healing debuffs in action.
Can't use monster sets with this setup, but for a group build, I feel like it isn't as necessary. This setup is worth it IMO for the utility it brings to the table for your group.
Swap out skills for a self heal if needed, most of the time with healers in group, my self heals are irrelevant.