From my experience with BW lifegain as a casual player, some cards that will work well are thins like Ajani's Pridemate ($0.40-$1.00) as it will get bigger for each instance of life gain. Another method is with Festival of Trokin ($0.36-$0.99) or Chaplain's Blessing for quick life. Something that could really benefit you is Whip of Erebos as it would give all of your creatures lifelink. A potential win condition is with Gnawing Zombie as you will be able to start killing them from your tokens (in case there is no way for you to deal damage directly with your creatures) but I truly like the deck.

cncfan, thanks, love

Congregate would do perfect in this deck! Ps. How do you win? I'd recommend putting a couple of Felidar Sovereign in there

SuperEnderSlayer there's not a huge wincon, but there's a few different possibilities. You can get an Intangible Virtue or two out on the field and give everything counters. Or you could have a few Suture Priests and Kambal, Consul of Allocation out in order to drain your opponent of life. This is especially fun against token decks. Even if neither one of those works, I've won a game simply because my opponent has drawn their deck before they had the amount of damage that it would take to kill me. I've also added Cathars' Crusade to my version and it is absolutely wonderful.

This deck looks awesome! The one thing I would consider is having something mainboard for the combo matchup. I would personally go with Swords to Plowshares (very cheap, 50 cents to 90 cents). It just makes your games versus creature based combos so much better. I think, along with the theme of Swords to Plowshares, there is certainly room for you to have more interaction. Having one or two authority of the consuls in your 75 could potentially give you an edge to get through the last few points of damage. There is also quite a lot of cheap hand hate that would really fit in with the strategy of this deck. I think this strategy is somewhat weak to many of the hate cards within legacy, like board wipes. You could disrupt this with cards like Inquisition of Kozilek/Duress (Duress is best as a sideboard card), both of which are fairly cheap. One more thing to consider, your decks weak point seems to be in the lands. Of course, things like fetches and wastelands, despite how good they are, are ridiculously expensive. However, cards like Shambling Vent could allow this deck to go wide a lot better. I would consider swapping out your 4 ETB tapped lands for 2 shambling vents and 2 other basics (I'm not a big fan of ETB tapped lands in a deck with important 1 drops, especially with my suggestions of 1 drop removal and hand hate). However, I'm a modern player, so what do I know? Great work!

Thornside, unfortunately many of the cards that you recommended are a bit too expensive to include right now, but I might include some in future decks that I create. I am considering throwing in a Duress, however. It would be useful against one of my friends. I also took out my tapped lands and replaced them with basic lands because I definitely agree with you about the 1 drops. Thanks <3

So why run the virtue when you could play Honor of the Pure?

I highly recommend Aerial Responder($0.21). It's bonkers in casual, I speak from experience.

It doesn't seem like you're going to have Fateful Hour all that often; have you considered Lingering Souls or Raise the Alarm instead of Gather the Townsfolk?

PieGuy Raise the Alarm has already been included. I thought about Lingering Souls, but I wanted to build a deck with what I already have so Gather the Townsfolk it was. I have actually had situations where Fateful Hour was useful and I was very thankful that it was there.

I play a very budget mono white soul sisters deck (it's like $50) and Spectral Procession has always been good. In b/w though, Lingering Souls would be just as good, if not better.

Vault of the Archangel would be a nice addition.

Vampire Nighthawk could be good too

Have you considered Drana's Emissary?

Sunbond and Selfless Spirit might work

Sunbond and Selfless Spirit might work

Aven Brigadier would be a nice global buff.

Looks fun. Sanguine Bond is at $0.59 on CK