100 cards.

One-drop mana dork tapping for G to accelerate into the deck's midrange engines.

Makes Food and turns it into any color of mana; Food also fuels sacrifice and life-gain triggers.

Sacrifices itself to exile a noncreature artifact or enchantment, and gains 2 life when it dies.

Free sacrifice outlet that scrys 1 per creature, enabling drain and sac triggers at instant speed.

Whenever it or another creature dies, target player loses 1 life and you gain 1. It targets one player, unlike effects that drain every opponent.

Recurs itself on landfall, giving an endlessly resaccable body to feed sacrifice outlets and death triggers.

Whenever you gain life, each opponent loses 1 life, once per gain event regardless of amount gained. A larger single gain is not extra triggers.

At your end step, creates a decayed Zombie if you control no creatures with decayed. Not every end step and not unconditional.

When another creature is put into your graveyard from the battlefield while Traitor is in your graveyard, you may pay B to return it. It cannot return from its own death trigger.

Sacrifices two creatures to force opponents to lose life and sacrifice, while you get BB and a card.

Sacrifices for a basic land onto the battlefield, ramping while triggering death and sacrifice payoffs.

Grants deathtouch on attack to prepare its Exsanguinate, draining each opponent for X and gaining that life.

Menace attacker that gains life on attack and recurs itself from the graveyard for BG as repeatable fodder.

Sacrifice outlet for creatures or artifacts that surveils 1, filtering and filling the graveyard.

Sacrifices a creature to fetch any land tapped and grows with creatures in your graveyard.

Each opponent loses 1 and you gain 1 whenever your creatures die, a second Blood Artist drain anchor.

Grows when another creature you control dies, and your nontoken creatures enter with an extra counter per creature that died under your control that turn. Opponents' creature deaths do not count.

Draws once per turn when one or more other creatures die. Multiple deaths in one event still create one trigger, and additional events that turn do not draw again.

Makes a 1/1 deathtouch Snake each upkeep when you have none, a renewable blocker and sac fodder.

Creates an Eldrazi Spawn when Pawn or another nontoken creature you control dies; it does not trigger for every player's creature.

At each upkeep, creates a Pest if you control no Pest creature token, checked on trigger and resolution. Adds one to life gained in each event, without multiplying Soul Steeper triggers.

Sacrifices a land to fetch two basics tapped, ramping and triggering land-sac and graveyard synergies.

On any life gain, pay B to return a creature card from your graveyard, looping sacrifice fodder.

Free repeatable sacrifice outlet with scry that brings a Goat token and escapes from the graveyard.

Sac outlet that grants itself indestructible and grows when opponents' creatures die.

Pumps your other black and green creatures and creates a Worm at the beginning of your upkeep, not every player's upkeep.

Prepares after a lifegain turn to cast Turn Stones, making a Pest token per opponent for tokens and drain.

Makes Food per nontoken creature that entered this turn and saccs Food to protect a creature.

Forces every player to sacrifice a creature on ETB and grows whenever any player sacrifices a permanent.

Requires a creature sacrifice at your upkeep and draws when you sacrifice a creature. Maintain fodder; another draw payoff is not required.

Gains 2 life on attack then pumps your team +X/+X by life gained this turn, a lifegain-fueled alpha strike.

Gains life on combat damage, then drains each opponent for the life gained this turn at end step.

Whenever a player sacrifices another permanent, puts a +1/+1 counter on each creature you control; Mazirek's own sacrifice is excluded.

Devour creates counters as it enters; at your upkeep it makes a Saproling for each +1/+1 counter on it. Opponents' upkeeps do not trigger it.

Gives attackers deathtouch and draws a card whenever a creature deals combat damage to a player.

Devour 1 (As this creature enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.) At the beginning of your end step, create a number of 1/1 black and green Pest creature tokens equal to the number of +1/+1 counters on this creature. They have "When this token dies, you gain 1 life."

Makes a Saproling each upkeep and anthems them +2/+2 with the city's blessing, a wide token swarm.

At your end step, if you gained life this turn, each opponent sacrifices a creature and you return up to one creature card from your graveyard to your hand.

Makes a lifegain Pest each upkeep and pays 10 life to untap all lands for explosive double-spell turns.

Destroys any target permanent an opponent controls at instant speed, the deck's catch-all answer.

Destroys any creature for two mana at the cost of 2 life, efficient spot removal.

Sacrifice any number of creatures to copy this and draw that many cards, a burst draw sac outlet.

Modal instant: sac for two cards, gain 5 life, or destroy a cheap nonland permanent.

Destroys any nonland permanent, costing 2 less after a lifegain turn, flexible removal.

Destroys X artifacts/enchantments and makes twice X lifegain Pest tokens, scalable removal plus tokens.

Symmetric edict that lets you recur a permanent if you sacrificed one, removal plus value.

Draws two cards for two mana and 2 life, cheap raw card advantage.

Modal sorcery picking two: land recursion, cheap removal, a -3/-1 shrink, or a 2-point drain.

Fetches two basics, one to the battlefield and one to hand, smoothing mana and fixing colors.

Sacrifice X creatures to destroy X nonland permanents, converting fodder into a removal wave.

Gravestorm draw-and-drain that copies for each permanent that died this turn, big card and life swings.

Pay X life to give all creatures -X/-X, a scalable board wipe that dodges indestructible.

Destroys all cheap nonland permanents and ramps you B or G per permanent destroyed, a wipe plus mana burst.

Modal destroy spell hitting an artifact, creature, enchantment, land, and planeswalker at once.

Modal mass removal: wipe creatures, planeswalkers, battles, exile graveyards, and strip opponents' counters.

One-mana rock tapping for two colorless, premier acceleration into the deck's engines.

Two-mana rock that taps for any color in your identity, reliable fixing and ramp.

At your upkeep, may create an Eldrazi Spawn that can be sacrificed for colorless mana. It does not trigger every upkeep.

Anthems attacking Pests and makes a lifegain Pest whenever a nontoken creature dies, fodder plus payoff.

Gives attacking Pests deathtouch and exiles graveyard cards to make lifegain Pest tokens.

On any life gain, pay 2 to make a 4/4 trample Fungus Beast, turning lifegain into big bodies.

Gain 1 life and draw a card whenever a creature you control dies, a core sacrifice value engine.

Taps for B and exiles a graveyard on entry, incidental graveyard hate on a land.

Taps for any color in your commander's identity, perfect dual-color fixing.

Taps for any color an opponent's land can make, usually flexible fixing in multiplayer.

Fetches a basic, untapping it with four-plus lands, fixing that also triggers landfall.

Tapped BG dual with cycling 2 so it can be drawn into a card late game.

Basic land tapping for G.

Colorless land that doubles as a sacrifice outlet, saccing a creature to draw a card.

Tapped BG dual land for color fixing.

Colorless land sac outlet that gains 1 life per creature, protecting key creatures and feeding drain.

Painland adding C freely or B/G for 1 damage, fast untapped fixing.

BG reveal land entering untapped if you show a Swamp or Forest from hand.

Tapped identity land that scrys 1 when its mana casts a creature sharing a type with your commander.

Adds C, or any color that scrys when spent on your commander from the command zone.

Basic land tapping for B.

Tapped BG scryland that smooths draws on entry.

Fetches a basic land tapped, color fixing that also enables landfall and graveyard recursion.

Tapped BG land with a surveil ability to filter and fill the graveyard late game.

BG dual that enters untapped when opponents control eight or more lands.

Filter land turning a B or G hybrid into two BG mana, strong fixing once you have a colored source.

BG dual entering untapped if you control two or more basics.

Land that taps with 1 to make BG, dependable two-color fixing.

Tapped BG land with a late-game scry ability for selection.

BG dual entering untapped if you control a Swamp or Forest.