I'd drop all the Defiant Bloodlord and a Bloodbond Vampire for at least three of Serene Stewards. With only 20 land you aren't going to see Defiant Bloodlord ever....and will likely get stuck on three often enough that you don't want two Bloodbond Vampires in your hand. Serene Steward makes your early guys get bigger fast in this deck.

I 2nd Scott_Anderson, no hands down Pressure Point is way better Tempo than Altar's Reap. Granted the Reap triggers your Zulaport Cutthroat, the feelinbg of tapping a creature on your turn before Defenders Declared, or just keeping a creature on your opponents field at bay while netting a card is GREAT!!

If you are having trouble fitting in Scoured Barrens, cut the 2 Shambling Vents and 1 Evolving Wilds. Personally I'm not a fan of running 4 Evolving Wilds in just a 2-color deck, getting 1-2 a game is nice, and the free shuffle is great. But, drawing that 3rd one, I would rather it be a Basic or Scoured Barrens(for example). And, Shambling Vent is great late game, but IMO, immediate results are better. The vent turns into a Lifelink creature later netting you life gain, the Barrens nets you atleast 1 life immediately. From playtesting with your decklist, and few others, I found when I had the Mana open for the Vent, I would rather use it for my reaps, points, and reproachs.

I also concur with lessthanthree24, on how to add the Serene Stewards. Which brings me to the 4 copies of March from the Tomb. I found that I almost always drew 1-2 of these in each playtest, though occasionally I would draw the 3rd as well. Casting 1 is great, being able to cast the 2nd with great targets(Kalastria Healer being on the field), can actually win the game. But, actually pulling off the 3rd or even 4th with legit targets, you are either getting hammered or your in the negative already. Plus, pulling off 1 is like pulling off a Defiant Bloodlord, mana wise, only got 20 lands. I would suggest cutting 1 atleast to avoid the dead draw.

Overall, this is just my suggestion :) we all have our own style of playing, I would recommend these changes:

-1 Evolving Wilds -1 Plains -2 Shambling Vent -1 Swamp

+2 Ally Encampment +3 Scoured Barrens

-2 Defiant Bloodlord -1 Bloodbond Vampire

+3 Serene Steward

-2 Alter's Reap(I personally still like the "I block that big guy with my 1/1, now I'm gonna sacrifice 'em for 2 cards", plus triggers cutthroat and makes a target for the march) -1 March from the Tomb

+3 Pressure Point

This is just my opinion, we all have our own style of play, prefered cards, and our Meta's effect that all as well. Thanks for Reading! And oh yea +1!!!!

Thank you for the info and suggestions FatherGrim! :)

I like everything about this deck but Felidar Sovereign. I made a similar deck and didn't have any problems winning at turn 5. This ally strategy can be aggro enough that trying to win with FS is going to be drawing the game out. Harsh Sustenance is a good, cheap card that offers synergy with this strategy.

I'll definitely consider dropping the Sovereigns for 2 copies of Harsh Sustenance.

"Bone Splinters: Sac an attacking creature who got blocked and likely die"

Sorcery speed, bro. Sorcery speed.

Sakuya, I mean before combat during main phase...

I have a choice, go into my attack phase with a 1/1 who is going to die horribly, or I can just hit it with bone splinters and blow up my opponent's biggest creature/threat and possibly trigger my cutthroat if it is on the field.

Assumptions, bro, assumptions.

The way you had said it implies that it's already attacking and is blocked, meaning instant-speed response. I believe you may have switched those parts for Altar's Reap and Bone Splinters.

Corrections, bro. Corrections.

+1! It's kinda sad that Ajani's Pridemate rotated out...