DMM Fell Drain: worth it?

[Flame of Anor]

It seems like it should be good, but there aren't really a lot of good multiple-target clerical damage-dealing spells.

[Xtomjames]

Depends on what type of cleric you're going for. And there are a lot of spells that do damage. I mean the cleric spells "inflict wound" should ring a bell. Channel negative energy if you're evil. Vampiric touch, etc.

[dextercorvia]

The main problem with it that I see is the extra turn attempt it takes. You are spending 3 turn attempts to add Fell Drain. The cleric has fewer options of mitigation than an Arcanist, however, so I don't think it would be wasted. You'll want to make sure that you have good options to use it with.