Basalt Monolith + Rings of Brighthearth needs to be in this deck. It's infinite colorless mana to get infinite Saprolings.

Look at Swarm Of Spores, Fungus Field, Sporecrown Thallid, and Song of Freyalise. They are all out of the new set and are NEEDED.

Put Arch Of Orazca, Phyrexian Plaguelord, Thelonite Hermit and Saproling Symbiosis in mainboard.

Cut Deathreap Ritual, Nettlevine Blight, verdant embrace, Diabolic Tutor, Killing Wave, Bile Blight, Trading Post, Razaketh, Pitiless Plunderer, and Meren (not because I hate her).

Where's Scatter the Seeds, Zulaport Cutthroat, & Blood Artist?

Cut deathreap ritual it's not a guaranteed draw, Phyrexian Arena is just better. Cut Chromatic lantern, its only good in 3 color+ decks; in this deck it's a wasted card slot.

Cut Primal Vigor, and just add Doubling Season as it doubles the amount of spore counters put on your fungus every turn.

Cut Greener Pastures, it just helps your opponents as much as you.

Cut Strength In Numbers, in this deck you are either going to combo out or swing wide with a bunch of dudes.

Cut Bile Blight and run either Black Sun's Zenith or Toxic Deluge I prefer the latter but it's on you.

Cut Evolutionary Leap, you don't have many creatures you make tokens.

Cut Life And Limb, because its gonna feel real bad when Lindsy WOGs your lands away.

Cut Costly Plunder

Cut Sprout Swarm, your commander does that for 1 mana less

Cut a tutor, I don't care which one and replace it with Natural Order to tutor up a Craterhoof Behemoth(yes you need one of these) for game.

Cards you NEED to add:

• Mazirek, Kraul Death Priest: This will just win you games with brute force.
• Emrakul's Evangel: Can be a win con, and does turn a bunch of your 1/1's into 3/2s
• High Market
• Victimize
• Viscera Seer: This can help you get to answers if you need them
• Smothering Abomination: Sure it comes at a cost but it's a lot of draw power
• Reprocess: You can draw insane amounts of cards with this.
• Primal Growth: stupid good ramp, and you will almost always be able to sac something into it.

Here are some cards worth looking at, not nessecarily SHOULD go in:

Blood Funnel, Bontu the Glorified, Catacomb Sifter, Champion of Stray Souls**, and Pawn of Ulamog

I feel like Mazirek, Kraul Death Priest is a little unnecessary in this deck. It doesnt activate when a creature dies it has to be a sacrifice.

I haz ideas. So I saw this deck played on Commander Vs, and basically they played the deck like a G/B Sac deck so... we are gonna do the same.

Cards to add:

• Dark Prophecy
• Night Soil
• Perilous Forays
• Journey to Eternity  ^Flip
• Dread Return
• Ever After
• Green Sun's Zenith
• Hour of Promise
• Reanimate
• Solemn Simulacrum
• Acidic Slime
• Disciple of Bolas
• Greenwarden of Murasa
• Korozda Guildmage
• Regal Force
• Sakura-Tribe Elder
• Skullwinder
• Smothering Abomination
• Woodfall Primus
• Yavimaya Elder
• Nemata, Grove Guardian
• Verdeloth the Ancient
• Whisper, Blood Liturgist
• Sidisi, Undead Vizier

Cards to cut:

• Thelon of Havenwood
• Thallid Soothsayer
• Thallid Shell-Dweller
• Thallid Germinator
• Thallid
• Sporoloth Ancient
• Sporesower Thallid
• Phyrexian Plaguelord
• Swamp
• Forest
• Black Sun's Zenith
• Parallel Evolution
• Black Market
• Fallen Ideal
• Fungal Bloom
• Eldrazi Monument
• Reprocess
• Triumph of the Hordes