Based on all your suggestions here is what I have come up with for a preliminary list. Not a full 100 but cards I know I want to try not including the kill spells and draw I will play.
It is really bothering me that you are not running both Doubling Season and Primal vigor (you just have 1/4 doublers (and since yo are not running whit you can only get at most 3/4)
maybe also run thallid Soothsayer Gets you card draw for your saprolings that may have blocked and will end up dying anyway.
I'm not currently playing Doubling Season due to not having one and it costing around $60 U.S. currently. I decided against playing Primal Vigor since it helps my opponents and I don't feel I need more than two of the token doubling effects, though I may be underestimating the need for multiple token doublers.
On the topic of Thallid Soothsayer, I think its too expensive to cast and activate to be worth it, especially since I have a lot of draw already in the deck.
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1 Massacre Wurm
1 Yahenni, Undying Partisan
1 Dusk Legion Zealot
1 Burglar Rat
1 Liliana's Specter
1 Fume Spitter
1 Fleshbag Marauder
1 Merciless Executioner
1 Plaguecrafter
1 Reassembling Skeleton
1 Ravenous Chupacabra
1 Nekrataal
1 Blade of the Bloodchief
1 Genesis Chamber
1 Champion's Helm
1 Conjurer's Closet
1 Mimic Vat
Enchantments
1 Oversold Cemetery
1 Black Market
1 Grave Betrayal
1 Diabolic Intent
Also, I was looking up when creatures die cards on Gatherer and came across these cards that have not been mentioned yet: Shriveling Rot, Sadistic Glee, Eternal Thirst, Dingus Staff, and Demon of Dark Schemes.
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I'm not currently playing Doubling Season due to not having one and it costing around $60 U.S. currently. I decided against playing Primal Vigor since it helps my opponents and I don't feel I need more than two of the token doubling effects, though I may be underestimating the need for multiple token doublers.
On the topic of Thallid Soothsayer, I think its too expensive to cast and activate to be worth it, especially since I have a lot of draw already in the deck.