Haptra

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

When Acidic Slime enters the battlefield, destroy target artifact, enchantment, or land.

As an additional cost to cast this spell, sacrifice a creature.

Draw two cards.

Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to target creature an opponent controls.

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.)

Whenever an opponent casts a spell, put a -1/-1 counter on Ammit Eternal.

Whenever Ammit Eternal deals combat damage to a player, remove all -1/-1 counters from it.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

{1}{G}: Regenerate Blight Mamba.

Reach (This creature can block creatures with flying.)

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Black creature spells you cast cost {1} less to cast.

Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

Enchant creature you control

When Cartouche of Ambition enters the battlefield, you may put a -1/-1 counter on target creature.

Enchanted creature gets +1/+1 and has lifelink.

When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control.

{T}, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.

Charging Rhino can't be blocked by more than one creature.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Core Prowler dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Haste

When Crocodile of the Crossing enters the battlefield, put a -1/-1 counter on target creature you control.

At the beginning of your upkeep, put a spore counter on Deathspore Thallid.

Remove three spore counters from Deathspore Thallid: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Target creature gets -1/-1 until end of turn.

When Decimator Beetle enters the battlefield, put a -1/-1 counter on target creature you control.

Whenever Decimator Beetle attacks, remove a -1/-1 counter from target creature you control and put a -1/-1 counter on up to one target creature defending player controls.

Prevent all combat damage that would be dealt to players this turn.

Desert of the Glorified enters the battlefield tapped.

{T}: Add {B}.

Cycling {1}{B} ({1}{B}, Discard this card: Draw a card.)

Desert of the Indomitable enters the battlefield tapped.

{T}: Add {G}.

Cycling {1}{G} ({1}{G}, Discard this card: Draw a card.)

{1}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Destroy target nonblack creature.

Sacrifice a creature: Dross Hopper gains flying until end of turn.

({T}: Add {G}.)

Whenever another creature you control dies, put a +1/+1 counter on Gavony Unhallowed.

{T}: Add three mana of any one color.

When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Whenever Hapatra, Vizier of Poisons deals combat damage to a player, you may put a -1/-1 counter on target creature.

Whenever you put one or more -1/-1 counters on a creature, create a 1/1 green Snake creature token with deathtouch.

Whenever another creature enters the battlefield under your control, Herd Gnarr gets +2/+2 until end of turn.

When Hooded Assassin enters the battlefield, choose one —

• Put a +1/+1 counter on Hooded Assassin.

• Destroy target creature that was dealt damage this turn.

Search your library for up to two land cards, put them onto the battlefield tapped, then shuffle. Then if you control three or more Deserts, create two 2/2 black Zombie creature tokens.

Put a +1/+1 counter on target creature, two +1/+1 counters on another target creature, and three +1/+1 counters on a third target creature.

Look at the top five cards of your library. You may reveal any number of creature cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.

Destroy target creature.

You gain 4 life. If a creature died this turn, you gain 8 life instead.

[+2]: Put a -1/-1 counter on up to one target creature.

[−3]: Destroy target creature with a -1/-1 counter on it.

[−10]: Return all creature cards from your graveyard to the battlefield.

Whenever Marsh Viper deals damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.)

Outlast {B} ({B}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Each creature you control with a +1/+1 counter on it has deathtouch.

When Miasmic Mummy enters the battlefield, each player discards a card.

Reach

{6}{G}: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

Whenever you put one or more -1/-1 counters on a creature, create that many 1/1 black Insect creature tokens.

[+1]: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.

[−2]: Create Ashaya, the Awoken World, a legendary 4/4 green Elemental creature token.

[−7]: Untap up to six target lands. They become 6/6 Elemental creatures. They're still lands.

{T}, Sacrifice Phyrexian Plaguelord: Target creature gets -4/-4 until end of turn.

Sacrifice a creature: Target creature gets -1/-1 until end of turn.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

At the beginning of your upkeep, create a 1/1 green Phyrexian Insect creature token with infect for each poison counter your opponents have.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

{T}: Add {C}.

Create a 2/2 green Wolf creature token.

Morbid — Create three 2/2 green Wolf creature tokens instead if a creature died this turn.

Primordial Hydra enters the battlefield with X +1/+1 counters on it.

At the beginning of your upkeep, double the number of +1/+1 counters on Primordial Hydra.

Primordial Hydra has trample as long as it has ten or more +1/+1 counters on it.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Whenever a source deals damage to Reaper of Sheoldred, that source's controller gets a poison counter.

Destroy target artifact, enchantment, or land.

Landfall — Whenever a land enters the battlefield under your control, choose one —

• Put a +1/+1 counter on target creature.

• You gain 2 life.

As an additional cost to cast this spell, discard a card and sacrifice a creature.

Two target creatures each get -13/-13 until end of turn.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Devoid (This card has no color.)

Whenever another nontoken creature you control dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}." ({C} represents colorless mana.)

Target player draws two cards and loses 2 life.

Devoid (This card has no color.)

Flying

Whenever Silent Skimmer attacks, defending player loses 2 life.

Enchant creature

Whenever enchanted creature attacks or blocks, its controller loses 2 life.

When Skinrender enters the battlefield, put three -1/-1 counters on target creature.

Destroy target creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {B}.)

Target creature gets +1/+0 and gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Defender

At the beginning of your upkeep, put a spore counter on Thallid Shell-Dweller.

Remove three spore counters from Thallid Shell-Dweller: Create a 1/1 green Saproling creature token.

{T}, Sacrifice an artifact: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Put three -1/-1 counters on target creature. Its controller loses 3 life unless they sacrifice another nonland permanent or discards a card.

Destroy all enchantments.

Trigon of Corruption enters the battlefield with three charge counters on it.

{B}{B}, {T}: Put a charge counter on Trigon of Corruption.

{2}, {T}, Remove a charge counter from Trigon of Corruption: Put a -1/-1 counter on target creature.

Outlast {G} ({G}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

Each creature you control with a +1/+1 counter on it has trample.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

({B/P} can be paid with either {B} or 2 life.)

Flying

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Put a -1/-1 counter on target creature. When that creature dies this turn, its controller gets a poison counter.

Return up to two target creature cards from your graveyard to your hand.

Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever equipped creature deals combat damage to a player, destroy all permanents other than Worldslayer.

Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery.)