D&D 5E - Help me define Mother Night (CoS)

My understanding is that it's the Morninglord who has abandoned the Barovian people. Mother Night is the reason for Madam Eva and Baba Lysaga. You even get cursed by her if you steal anything from her shrine. She seems pretty active to me.

The people's belief that she sent Strahd is just that, their belief, which is untrue. She isn't necessarily evil. It's just that there is a lot more night than light in this world.

I was going for something as simple as Mother Night enjoying the nightly naked dance, and stepping forward, as she's "closer" to the drow than Ellistraee herself.

Cool idea about the undead

IIRC, before Curse of Strahd, both deities were believed to be no longer active, although I'm aware that Mother Night is active in the latest book (that's why I used the wording in my post), so I thought that it was a recent thing. I didn't mean to imply that she was flat out evil, but she surely doesn't seem to be nice. Eilistraee is the moon and stars in the nightsky, while Mother Night could be more focused on the darkness of night itself (or that's the impression I have from it).

In any case, I think it depends on why you want Mother Night to bless the drow. If it is because of lore reasons, yes, it's true that Ravenloft is Mother Night's turf, and that clerics of external deities feel an emptiness inside them while they enter Ravenloft.However, just like divine spells still work, I guess blessings could also work in a similar way. Since communication with deities is impossible, and since Eilistraee enjoys to be at her people's side when they need comfort or help, I guess that the moonfire blessing could be her way to tell her follower that she's not been forsaken.

If you want Mother Night to be involved because you like the idea, then I think that it'd be somewhat of a waste to not make a stroy out of it. If you want to spin the undead power in a more positive way, maybe you could have both Mother Night and Eilistraee be close to the drow. Perhaps Mother Night--if you want her to be benevolent--plans to use the drow (and others) to free and purify the undead of Barovia, or to make them into something different, more alike to people than twisted tormented creatures, while retaining their undeath. Eilistraee's light--which is soothing, a light of acceptance, that brings confort and hope--could prove instrumental for this.

For example, the drow's weapons could be surrounded by cold moonlight which can "charm" the undead when struck, by soothing the pain that they feel. With time (levels), that power could grow. For example, it could return lucidity to the undead's minds for a limited time, then for longer periods of time, until the point is reached when the two goddesses' magic combined can purify the undead (which is my suggested idea for Mother Night's general goal, one which Eilistraee and someone who shares her belief would be fine with).

Discussing this with the player could be helpful, even though in the end the choice is oviously yours.

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