Never looked at a R/W Soul Sisters + Norin, but would Serra Ascendant work well?It's human, makes a great beater, gains you lots of life if you can manage it, etc.

As well, how about Lightning Helix over Bolt in this case? Deals three damage, yet still gains life.

Thous I would just put another Exile over Dismember. And Blood Moon I think would hurt you more with all the non basics you have.

I've considered, and am still considering 1-2 Serra Ascendant . They're are very nice if I'm meeting that 30 life quota, otherwise, it's pretty much another Myr token. Also, it can be tutored with Ranger of Eos , which is nice. I believe I'll begin testing it as a 1-of and see how it performs.

Lightning Helix , especially if I include Serra Ascendant , is not a bad idea, however, I do like that Lightning Bolt is only a single red mana.

Path to Exile is probably the best removal Modern has, but if you're playing against Twin Exarch or another combo deck, then that extra bit of mana can just accelerate them faster to being able to play what they need. When facing those decks, I normally side in an extra Dismember , 2x Suppression Field , and 2-3 Wear / Tear .

As for Blood Moon and Magus of the Moon , I almost always have a basic Plains on the field, because as long as I have one source of red mana, then I can afford to use a fetch land to grab one early game, if I don't draw one. Thus far, it has worked wonderfully. Especially well against Tron, Selesnya/Bant Hexproof, Jund, and other decks that use nearly all Non-Basics.

Wow! R/W life gain, amazing I never thought of this! Truly a amazing deck.

@JundGrixisNayaBantEsper Thank you!

@NateJH By the way, thank you for the suggestions!

By the way, do you think you could see my R/W life gain?

@JundGrixisNayaBantEsper Comment with the link and I'll gladly take a look at it.