Whenever a creature attacks, Caltrops deals 1 damage to it.

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature. {4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add one mana of any color that a land an opponent controls could produce.

{3}, {T}: Untap target creature.

Whenever a player casts a green spell, you may pay {3}. If you do, untap target permanent.

Imprint — Whenever a nontoken creature dies, you may exile that card. If you do, return each other card exiled with Mimic Vat to its owner's graveyard. {3}, {T}: Create a token that's a copy of a card exiled with Mimic Vat. It gains haste. Exile it at the beginning of the next end step.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

{2}, {T}: You may tap or untap target creature.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.) Equip {1}

{T}: Add {C}. {T}: Add {B} or {G}. Talisman of Resilience deals 1 damage to you.

Flying (This creature can't be blocked except by creatures with flying or reach.) Other black creatures get +1/+1. Nonblack creatures get -1/-1.

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.

Flying Carnifex Demon enters the battlefield with two -1/-1 counters on it. {B}, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.

Other black creatures you control get +1/+1. Other green creatures you control get +1/+1. At the beginning of your upkeep, you may create a 1/1 black and green Worm creature token.

Flying Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.

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.

Deathtouch Whenever another nontoken creature dies, you may draw a card.

Flying Whenever a creature becomes the target of a spell or ability, destroy that creature.

Other creatures get -1/-1.

{T}: Add {G}.

Flying Whenever a creature card is put into an opponent's graveyard from anywhere, you may pay life equal to its mana value. If you do, put it onto the battlefield under your control. It's a Warlock in addition to its other types. If a Warlock you control would die, exile it instead.

Menace When Massacre Girl enters the battlefield, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creature other than Massacre Girl gets -1/-1 until end of turn.

Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

Reach Whenever Obelisk Spider deals combat damage to a creature, put a -1/-1 counter on that creature. Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.

Reach (This creature can block creatures with flying.) Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Whenever another creature dies, each opponent loses 1 life.

Whenever another creature dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.) {B}: Reaper of the Wilds gains deathtouch until end of turn. {1}{G}: Reaper of the Wilds gains hexproof until end of turn.

Other tapped creatures you control have deathtouch. Other untapped creatures you control have hexproof. {1}, {T}: Untap another target creature or land you control.

{T}: Untap target creature.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) When Sepulchral Primordial enters the battlefield, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control.

Bewitching Whispers — When Shessra, Death's Whisper enters the battlefield, target creature blocks this turn if able. Whispers of the Grave — At the beginning of your end step, if a creature died this turn, you may pay 2 life. If you do, draw a card.

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

Whenever a creature dies, put a charge counter on Black Market. At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.

Whenever a creature dies, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.

Enchant player Creatures enchanted player controls get -1/-1.

Morbid — At the beginning of each end step, if a creature died this turn, you may draw a card.

{2}{B}{B}: Put a -1/-1 counter on target creature.

Whenever a -1/-1 counter is put on a creature, you may create a 1/1 green Elf Warrior creature token.

Creatures you control get +1/+1.

Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning of the next end step. That creature is a black Zombie in addition to its other colors and types.

{B}, Pay 2 life: Draw a card.

Enchant creature Enchanted creature can attack as though it had haste. {0}: Untap enchanted creature. Activate only during your turn and only once each turn.

Enchant creature you control {0}: Untap enchanted creature. Activate only during your turn and only once each turn. Tap enchanted creature: Untap target artifact, creature, or land. Activate only if enchanted creature is white and untapped and only once each turn.

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

Enchant land Enchanted land has "{T}: This land deals 1 damage to each creature and each player."

Enchant creature Enchanted creature gets -1/-1. When enchanted creature dies, return Screams from Within from your graveyard to the battlefield.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.) I — Target opponent reveals their hand. You choose a creature or planeswalker card from it. That player discards that card. II — Search your library for a card, put that card into your hand, then shuffle. You lose 3 life. III — Put target creature card from a graveyard onto the battlefield under your control.

Add {B}{B}{B}.

Put a -1/-1 counter on target creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

As an additional cost to cast this spell, sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Distribute two -1/-1 counters among one or two target creatures.

({T}: Add {G}.)

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Search your library for a card, put that card into your hand, then shuffle.

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.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

All creatures get -4/-4 until end of turn.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Return target card from your graveyard to your hand.