Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) This creature can't be blocked.

Enchant creature You control enchanted creature. Enchanted creature has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Equipped creature gets +2/+2 and has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Whenever Grafted Exoskeleton becomes unattached from a permanent, sacrifice that permanent. Equip {2}

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When this creature enters, each player gets a poison counter.

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

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {B}: Skithiryx gains haste until end of turn. {B}{B}: Regenerate Skithiryx.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {3}{U}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Each player sacrifices two creatures of their choice.

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

Counter target spell.

Counter target noncreature spell. Its controller loses 2 life.

Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way. Cycling {3}{B}{B} ({3}{B}{B}, Discard this card: Draw a card.) When you cycle this card, all creatures get -2/-2 until end of turn.

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Counter target spell with mana value 4 or greater.

Each creature your opponents control is an Illusion in addition to its other types and has "When this creature becomes the target of a spell or ability, sacrifice it."

Wither (This deals damage to creatures in the form of -1/-1 counters.) At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature.

This artifact enters tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

When this creature enters, 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.)

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Until end of turn, creatures target player controls lose all abilities and have base power and toughness 0/2.

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

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

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

This land enters tapped. When this land enters, exile target player's graveyard. {T}: Add {B}.

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

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

This land enters tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {U}.)

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

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

You have no maximum hand size. {T}: Add {C}.

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

({T}: Add {B}.)

{T}: Add {C}{C}. Activate only if you control five or more lands.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When this creature dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

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}.

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) Draw a card.

When this creature enters, double the number of each kind of counter on any number of target permanents.

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

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.)

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) Draw a card.

Draw three cards, then put two cards from your hand on top of your library in any order.

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.

At the beginning of your upkeep, put a lore counter on this enchantment, then draw a card for each lore counter on this enchantment.

At the beginning of your upkeep, you draw a card and you lose 1 life.

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

({U/P} can be paid with either {U} or 2 life.) Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

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

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Whenever you tap a Swamp for mana, add an additional {B}.

Indestructible (Effects that say "destroy" don't destroy this artifact.) {T}: Add one mana of any color.

{T}: Add {U} or {B}. {U}{B}, {T}, Sacrifice this artifact: Draw a card.

{T}: Add {U} or {B}. {U}{B}: This artifact becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.

{T}: Add {U} or {B}. {U/B}{U/B}{U/B}{U/B}, {T}, Sacrifice this artifact: Draw two cards.

{1}, {T}: Add {U}{B}.

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

{2}, {T}: Add {B} for each Swamp you control.

Sacrifice a creature: Add one mana of any color.

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

{T}: Add {C}. {T}: Add {U} or {B}. This artifact deals 1 damage to you.