[quote="Kirintha the Fair":2tgt33ht]in book of Exalted Deeds it introduces a new concept the "Saint" think Saints are something Eilistraee would have a number of as the church likely has its share of martyrs.[/quote:2tgt33ht]
Personally, when I look at the "generic" 3rd Edition books from WotC, I think of them as being "Greyhawk-lite" books and not necessarily something that applies to campaign settings (like Forgotten Realms). In fact, if you look at the "Exaulted Gods" section on pages 24-26, there is clearly a mention of Greyhawk gods and no mention of Forgotten Realms gods. So I do not think this book naturally connects to Forgotten Realms...and Eilistraee. But it is possible to bolt anything onto anything else.
So your first question is: "Do you want to use saints with FR?" If you do, and it sounds like you do, your next question becomes: "Does the saint template fit well with the Church of Eilistraee?"
If you are a GM running a drow based game, you do not need anyone's permission to do this. So just do it and have fun.
But if you are a player seeking for support to have this template, then you should be talking to your GM, rather than to other drow fans. This clearly is a game-changing template that a GM is offered as a potential plot device.
Given the restrictions, I think it would be [i:2tgt33ht]possible[/i:2tgt33ht] to have an Eilistraee worshipping saint:
[quote="Book of Exalted Deeds page 29":2tgt33ht]In order to qualify for sainthood, a character must meet the following qualifications, as well as any additional requirements set by the DM:
[list:2tgt33ht][*:2tgt33ht]Must be of good alignment[/*
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[*:2tgt33ht]Must have at least three exalted feats[/*
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[*:2tgt33ht]Must never have lost the benefit of exalted feats or class abilities because of committing an evil act, even if the character properly atoned[/*
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[*:2tgt33ht]Must at all times behave in a way the DM considers to be exemplary of the exalted path described in this book[/*
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[*:2tgt33ht]Must be at least 6th level[/*
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[*:2tgt33ht]Must make an extraordinary sacrifice (not necessarily his or her life) for the good of another[/*
2tgt33ht][/list:u:2tgt33ht][/quote:2tgt33ht]
I'm not sure why it would be "better" to have a "saint of Eilistraee" instead of a "Chosen of Eilistraee" but maybe a saint can be of lesser power or somesuch.
From what I read a saint turns into a native outsider, when they make their big sacrifice and Eilistraee and/or the most important celestials who serve her decide to turn the character into a saint.
It is interesting that you think that there would be lots of saints (given that there are a lot of martyrs). The conditions are quite strict. I wonder how many drow get to be faithful servants of Eilistraee without ever having been tempted (or tricked) by Lolth. I think that saints could be quite rare.
One thing about this template is that I think it could be used as a "trick" by a GM to return a drow PC to play after that PC is killed saving the life of another player or NPC. And if you had a TPK, where the entire party died trying to save innocent drow, that would be an excuse to give the entire party the saint template, have them wake up somewhere else, and put them back into the game. From that point of view, I think the saint template could be a good thing.
If I was a GM and a player asked for this, I probably would not hand it out. But if a player "asked" to be given this, I'm not sure I would go with it.
There is also the fact that you need to have already have handed out at least three exaulted feats to PCs before they qualify for sainthood (aside from the other restrictions). That means you pretty much need to build this thing into your campaign from day one. And some of those exaulted feats would be a bit problematic to Eilistraee worshippers.
Favoured of the Companions, Knight of the Stars and Servant of the Heavens all require an oath to celestial beings. I think that would be incompatible with a drow serving Eilistraee (and Eilistraee alone). I suppose you could design new celestial organisations that have some sort of tie-in with Eilistraee and create replacement feats with that new background fluff.
A lot of the other feats are tied into specific classes or high ability scores. If you are designing your campaign, you are going to need to make sure that your PCs can take three of them without needing to be epic characters first. In fact, it seems to me, that you would need to railroad PCs into specifically taking exaulted feats to make the saint concept to work in a game.
The Nimbus of Light path (Nimbus of Light, Holy Radiance and Stigmata) might work OK, but I think that Stigmata is a bit of a weird ability and drow running around the Underdark glowing like light bulbs could be a bit unusual.
The various feats in the Sacred Vow path might also work OK, but I'm not sure how many of those vows are compatible with the way that Eilistraee wants drow to behave.
However, if you looked through all of this sort of stuff, tossed the stuff that you thought was a bit too hard to fit into drow culture and gave the PCs a reason to want to choose exaulted feats, you might be able to convert one or two PCs into saints at some point.
Good luck.