The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

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.

{T}: Add one mana of any color in your commander's color identity.

{T}: Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

When Contagion Clasp enters, 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.)

When this artifact enters, put a -1/-1 counter on each creature target player controls. {4}, {T}: Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.

{T}: Draw a card. Activate only if you created a token this turn. {8}, {T}, Sacrifice this artifact: Create a 10/10 colorless Eldrazi creature token.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

{T}: Add {C}{C}.

{T}, Tap an untapped creature you control: Add one mana of any color.

This land enters tapped. {T}: Add {B}. Cycling {B} ({B}, Discard this card: Draw a card.)

{T}: Add one mana of any color in your commander's color identity.

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand. {T}: Add {B}, {R}, or {G}.

This land enters tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

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

({T}: Add {G}.)

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {B}{G}.

{T}: Add {C}. {1}, {T}, Sacrifice this land: Put a -1/-1 counter on target creature. Activate only as a sorcery.

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {R}{G}.

{T}: Add {C}. {4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {C}. {T}: Put a charge counter on this land. {T}, Remove a charge counter from this land: Add one mana of any color.

({T}: Add {R}.)

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {B}{R}.

When this land enters, sacrifice it. When you do, search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

This land enters tapped unless you control a Mountain or a Forest. {T}: Add {R} or {G}.

({T}: Add {B} or {R}.) This land enters tapped unless you control two or more basic lands.

({T}: Add {B}.)

{T}: Add {C}. {T}: Add {B} or {G}. Activate only if you control a Swamp.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {R} or {G}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {B} or {G}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {B} or {R}.

This land enters tapped. {T}: Add {G}. Cycling {G} ({G}, Discard this card: Draw a card.)

Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.) Whenever an opponent casts a spell, put a -1/-1 counter on this creature. Whenever this creature deals combat damage to a player, remove all -1/-1 counters from it.

When this creature enters, you may put a -1/-1 counter on target creature. {B}, Sacrifice this creature: Destroy target creature that has a -1/-1 counter on it.

When this creature enters, add {R}{G}.

As this creature enters, choose an opponent. This creature enters with a -1/-1 counter on it for each creature that player controls.

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

When this creature enters, put three -1/-1 counters on target creature you control. {T}, Remove a -1/-1 counter from this creature: Add one mana of any color.

Deathtouch At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls. Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.

Black creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)

When this creature enters, put a -1/-1 counter on target creature you control. Whenever this creature 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.

Whenever this creature attacks or blocks, put a -1/-1 counter on it. When this creature dies, draw a card for each -1/-1 counter on it.

Whenever another creature you control enters, it gets +2/+0 and gains haste until end of turn. When Enduring Courage dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

When this creature enters, you may return target card from your graveyard to your hand.

Landfall — Whenever a land you control enters, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Sacrifice this creature: Put a -1/-1 counter on target creature.

When this creature enters, support 2. (Put a +1/+1 counter on each of up to two other target creatures.) Whenever you put one or more counters on a creature you don't control, draw a card.

Whenever Hapatra 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.

When Honest Rutstein enters, return target creature card from your graveyard to your hand. Creature spells you cast cost {1} less to cast.

Flying Wither (This deals damage to creatures in the form of -1/-1 counters.) Creatures your opponents control with counters on them can't attack or block.

Menace When Massacre Girl enters, 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.

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.

This creature enters with four -1/-1 counters on it. Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever you cast a black spell, remove a -1/-1 counter from this creature. Whenever you cast a green spell, remove a -1/-1 counter from this creature.

Reach Whenever this creature 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.

At the beginning of each opponent's upkeep, they lose 1 life and you put a -1/-1 counter on up to one target creature they control. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Vigilance, deathtouch, haste Questing Beast can't be blocked by creatures with power 2 or less. Combat damage that would be dealt by creatures you control can't be prevented. Whenever Questing Beast deals combat damage to an opponent, it deals that much damage to target planeswalker that player controls.

{T}: Put an oil counter on this creature. {T}, Remove an oil counter from this creature: Untap target land.

When this creature enters, put three -1/-1 counters on target creature.

When this creature enters, you may sacrifice a land. If you do, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever this creature deals damage to a player, that player can't gain life for the rest of the game.

Whenever a creature with a -1/-1 counter on it dies, draw a card. {1}{B}{R}: Put a -1/-1 counter on another target creature. When The Scorpion God dies, return it to its owner's hand at the beginning of the next end step.

+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.

At the beginning of your upkeep, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this token: Add {C}."

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

Enchant creature you control When this Aura enters, you may put a -1/-1 counter on target creature. Enchanted creature gets +1/+1 and has lifelink.

At the beginning of your upkeep, destroy target creature with a -1/-1 counter on it.

Players can't gain life. Damage can't be prevented. All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)

{G}, Sacrifice a creature: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.

Enchant creature As long as enchanted creature is black, it gets +1/+1 and has wither. (It deals damage to creatures in the form of -1/-1 counters.) As long as enchanted creature is red, it gets +1/+1 and has first strike.

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

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Target creature gets -4/-4 until end of turn. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Each opponent loses 1 life for each creature you control.

Search your library for up to X basic land cards, where X is the number of tapped creatures you control, put those cards onto the battlefield tapped, then shuffle.

Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)