Alright, I've played too many games against Tron where I wasn't able to Wish for a Fulminator Mage, so the Ghost Quarters are going in!

I'd suggest a couple copies of Raven's Crime as a way to use those extra lands for the cases when you get flooded. Which will happen with 26 lands on occasion. It will help with your "win-by-attrition" game plan and will save your but when you have a hand full of lands.

What's Garruk Wildspeaker doing for you? I feel like Liliana of the Veil would be much more appropriate. You're already trying to have the early game BB available and her discard works well with your game plan. Throw Lingering Souls or a land into the graveyard that you can take advantage of later.

I'd also consider running a 2/2 split with Thoughtseize and Inquisition of Kozilek.

Eternal Witness is also a card to consider. And I'd also consider just running 4x Siege Rhino rather than 2x Baneslayer Angel. Personal choice, but the EotB effect is much more immediate and threatening if they have removal sitting in hand. 1 CMC cheaper is also more synergistic with Smallpox. Another option would be Restoration Angel to bounce your Siege Rhinos and Kitchen Finks.

First off, thanks for the feedback, Saljen!

Raven's Crime's not a bad idea, but I don't know what I'd cut for it. Any ideas? Inquisition of Kozilek is usually better, but it does improve my already-strong top deck game. Thoughtseize is better still, but this deck already Bolts itself every time it fetches an untapped shockland so I can't afford to take any more damage.

While Liliana of the Veil's insane, she's also unquestionably above my budget. Garruk Wildspeaker is actually a house! He's common in Death Cloud decks for good reason: he is pure resource advantage.

I've thought about Restoration Angel and Eternal Witness a bit, and ultimately they're not what this deck wants to do. If my build was more creature-centric like typical Abzan, I would run both in an instant. Something else to consider is counter-strategies -- I've had people side Torpor Orb against me to almost no effect, but playing these cards would improve Orb a lot, therefore making my deck much worse if it hits the board.

As for 4 Siege Rhinos, that's worth trying too. The games I've won off topdecking the pseudo-Lightning Helix are undeniable. However, I don't value speed that much in this deck. Baneslayer Angel demands a removal or counter spell and unlike Rhino, she wins the game if unanswered. I already want the game to go long, and so long as my opponents are trading resources 1-for-1 with my threats, I'm confident I can out-topdeck them. I like the idea though, so I'll try out a full set of Rhinos anyway!

I'd test out Life from the Loam - It's great with Ghost Quarter and Smallpox as well as Treetop Village :)

Thanks for the suggestion rorofat! Life from the Loam is great with Smallpox. In general, though, it's not what this deck wants to be doing. I could see myself running Loam if I played more lands and some Seismic Assaults, but for now I'll pass.

Hey nice build

You should checkout my version of BW Modern Smallpox Orzhov's Purulent Plague!

+1 from me!