Ein sof restores SP and can affect up to 2 people. It’s a couple of steps more useful than healing factor, which is usually going to be consumed only by the caster. It’s great when soloing, don’t get me wrong, but hard to appreciate in groups. Besides, if you’re taking Disenchant then you probably aren’t going to have enough points to put 10 into this.
Bloodletting is nice for what it does, no complaints about that one, but I cannot often think of many situations where I feel like I need lv2 status prevention urgently in PVE.
BDS and Incinerate are outperformed pretty hard by exorcist’s Rubric as a core dps skill for a caster cleric. Which sucks because I find them way more satisfying. If you’re playing for damage, you’ll be taking Exo or Druid.
Methadone is nice, but remember that Exorcist also gets knockdown prevention, even if it’s got a shorter duration. So I don’t feel like it’s particularly unique to Plague Doctor here.
TBH though I really didn’t know Disenchant was used for bosses, because I never really see it used or haven’t used it much myself as someone who primarily plays PVE. Does it work every time you cast Disenchant, or is it based on the success rate?