To me the swingiest cards in this archetype and in previous builds are as follows: Sorin, Solemn Visitor, Declaration in stone, Tidehollow Sculler & Blight Herder. So I've cut Sorin, Blight and Dec and kept Strangler as the only processor.
Reality Smasher as the closer - after a lot of testing with how grindy the deck is, I've come to the choice to put away my blight herders for now and run smashers, there are too many games where a top deck smasher is GG. If a more controlling meta should exist in the near future this will be revisited.
LtLH vs. LotV - With smasher in play and the meta still being very aggressive I've chosen to move in this direction, this is in a similar bucket to smasher vs. herder, where if control was more present I would consider the switch. Her +1 is great right now, and if they do manage to deal with but not path your TKS or smasher being able to recur them is great in addition to digging for a threat, she also pushes card advantage with souls in the deck and her ult just closes games out.
Dec for CoBr #2 - Dec is a great card with a good amount of upside but CoBr's utility has over performed time and time again its only brought out against a few decks in the meta; escalating pitching souls early or late game TS or Iok to get real value is amazing. With the reduction of herder and great experiences so far the second copy was brought in from the board.
Manabase - With what I perceive to be an uptick in Path to Exile post Kaladesh with Abzan over Jund in addition to Bant eldrazi firmly planting its flag and the current composition of the deck I cut 1 basic plains for 1 basic wastes.
Here are the numbers: 15 symbols with an additional 4 for flashing back souls not factored in, 13 symbols & 8 with an additional 3 for activating displacer not factored in. 14 sources of which 11 come into play untapped for T1 disruption a bit low but I'm willing to concede that for vent's strength, 13 sources, this falls in line with hitting all three colors for 90% on turns 1 & 2 respectively. I also treat fetid and urborg as just a & source respectively not factoring in their upside.
I've previously posted about why I swapped the number of TS & IoK.
Languish - Eldrazi is the only deck where we lose some percentage points but with our removal suite and own smashers, I'm ok with this, I think we will continue to see an uptick in selfless spirit.
Lost Legacy - The fact that its turn 3 instead of 4 is huge; memoricide was ok but a often a turn too slow, this card is going to help our worst match ups [tron, scapeshift] and even using it on yourself against ad naus if they turn 0 leyline to get rid of your own Thoughtseize is a corner case I can see coming up on occasion.
Aven Mindcensor - Again a card that helps our more challenging match ups.
Fragmentize - 1 less and sorcery is ok by me, i'm ok with losing the ability to hit ink and blink in affinity for blowing up map/vial/seas on the draw or leyline on 1 or t2 if we have vent in our opener.
Shaving cage down to 1 - We're already pre-boarded against dredge and while you have to respect their nut draw, I'm ok with Aven Mindcensor picking up points across the board against chord, tron, titanshift & Nahari in its place.