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

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

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.)

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

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

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

{T}, Sacrifice a creature: Target creature gets +2/+2 until end of turn. {1}{U}{U}, Sacrifice a creature: Counter target creature spell.

Changeling (This card is every creature type.) This creature can't block and can't be blocked.

{2}{B}{B}: Target creature gets -1/-1 until end of turn. Put a +1/+1 counter on this creature.

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

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

Flying, deathtouch Whenever a player sacrifices a nontoken creature, create a 1/1 black Insect creature token with flying. Whenever an Insect, Leech, Slug, or Worm you control attacks, defending player loses 1 life and you gain 1 life.

{5}: At the beginning of your next upkeep, choose a basic land type. This creature gains landwalk of the chosen type until the end of that turn. (It can't be blocked as long as defending player controls a land of that type.)

Menace Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Flying, trample Ward—Discard a card. Creatures your opponents control have base toughness 1.

When this creature enters, creatures your opponents control get -2/-2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life.

Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature attacks or blocks, sacrifice another creature or land.

Changeling Whenever you cast an instant or sorcery spell, if it targets one or more other permanents you control, create a token that's a copy of one of those permanents. When a spell or ability an opponent controls causes you to discard this card, create a token that's a copy of target permanent.

Sacrifice this creature: Choose target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand.

Whenever this creature becomes tapped, choose one — • You may put a land card from your hand onto the battlefield tapped. • Return target land card from your graveyard to the battlefield tapped.

Whenever this creature enters or attacks, put a slime counter on up to one other target creature. Non-Horror creatures with slime counters on them lose all abilities and have base power and toughness 2/2.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Flying If you would proliferate, proliferate twice instead. {1}{U/P}{U/P}, Remove three counters from among other artifacts, creatures, and planeswalkers you control: Put an indestructible counter on Tekuthal. ({U/P} can be paid with either {U} or 2 life.)

As this enchantment enters, choose a creature type. Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

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

As this enchantment enters, choose a creature type. Whenever a creature you control of the chosen type enters or attacks, draw a card.

Target creature gets -13/-13 until end of turn. If that creature would die this turn, exile it instead.

Choose one — • Target creature gets -5/-5 until end of turn. • Creature tokens get -2/-2 until end of turn.

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

Counter target spell.

Add {B}{B}{B}.

Destroy target nonblack creature.

Move all counters from target creature onto another target creature.

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

Destroy target nonartifact creature.

Target creature gets -4/-4 until end of turn.

Destroy target creature.

Changeling (This card is every creature type.) Target creature gets +3/-3 and loses all creature types until end of turn.

Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Target creature gets -2/-2 until end of turn.

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

Target creature gets -1/-1 until end of turn. Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn.

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.) Target creature gets -2/-2 until end of turn. If this spell was kicked, that creature gets an additional -1/-1 until end of turn for each instant and sorcery card in your graveyard.

Choose one — • Target creature gets -6/-0 until end of turn. • Switch target creature's power and toughness until end of turn. Entwine {B} (Choose both if you pay the entwine cost.)

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

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

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. When this land enters, sacrifice it unless you return an untapped Swamp you control to its owner's hand. {T}: Add {C}{B}.

({T}: Add {U} or {B}.) This land enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

({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.)

({T}: Add {B}.)

All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone.

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

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.)

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Choose one or both — • Return target creature card from your graveyard to your hand. • Return target land card from your graveyard to your hand.

Until your next turn, creatures target player controls have base power and toughness 1/1. Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Destroy target land or nonblack creature.

({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.)