{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.

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

As this artifact enters, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on this artifact. Creatures you control of the chosen type get +1/+1 for each charge counter on this artifact.

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

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. {3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) As this artifact enters, choose a creature type. Creatures you control of the chosen type get +2/+2.

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

As this creature enters, choose a creature type. This creature is the chosen type in addition to its other types. Other creatures you control of the chosen type get +1/+1.

Threshold — This creature gets +2/+2 as long as seven or more cards are in your graveyard.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Protection from black At the beginning of your upkeep, sacrifice this creature unless you put a card from your graveyard on the bottom of your library.

Reach (This creature can block creatures with flying.) {1}{G}: This creature can block an additional creature this turn.

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

As this creature enters, choose a creature type. When this creature enters, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order. Creatures of the chosen type get +1/+1.

Changeling (This card is every creature type.) Protection from black {2}{G}{G}: This creature gets +X/+X until end of turn, where X is its power.

Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.

Reach (This creature can block creatures with flying.) 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.)

When this creature enters, you may sacrifice a land. If you do, draw a card. Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has vigilance.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Trample When this creature enters, you may remove any number of +1/+1 counters from among creatures you control. If you do, put twice that many +1/+1 counters on this creature.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, prevent all combat damage that other creatures would deal this turn.

This creature has flying as long as you've cast an instant or sorcery spell this turn.

Other green creatures you control get +1/+1. Other blue creatures you control get +1/+1. Untap all green and/or blue creatures you control during each other player's untap step.

When this creature dies, each opponent discards a card.

{T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn.

Graft 3 (This creature enters with three +1/+1 counters on it. Whenever another creature enters, you may move a +1/+1 counter from this creature onto it.) {2}: Target creature with a +1/+1 counter on it gains shroud until end of turn. (It can't be the target of spells or abilities.)

Each creature spell you cast costs {1} less to cast if it has mutate. Whenever you cast a creature spell, if it has mutate, draw a card, then discard a card.

Landfall — Whenever a land you control enters, create a 1/1 green Insect creature token. If you control six or more lands, create a token that's a copy of this creature instead.

At the beginning of your upkeep, return a creature you control to its owner's hand.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

{3}{U}: This creature gains flying until end of turn.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) {2}{G/U}{G/U}: Mill two cards, then return a nonland card of an opponent's choice from your graveyard to your hand.

Deathtouch At the beginning of your upkeep, sacrifice The Gitrog Monster unless you sacrifice a land. You may play an additional land on each of your turns. Whenever one or more land cards are put into your graveyard from anywhere, draw a card.

If you would draw a card, look at the top three cards of your library instead. Put one of those cards into your hand and the rest on the bottom of your library in any order.

{2}{G}: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.) Each creature you control with a +1/+1 counter on it has trample.

{U}: This creature gains flying until end of turn.

Whenever another creature enters, you lose 1 life.

Enchant creature When this Aura enters, draw a card. Enchanted creature has reach. (It can block creatures with flying.)

Enchant creature Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1. (It loses all other card types and creature types.)

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Counter target spell.

If you control a commander, you may cast this spell without paying its mana cost. Exile target creature.

Destroy target nonblack creature.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

Choose a creature type. You gain 2 life for each permanent you control of that type.

Counter target noncreature spell.

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

({T}: Add {G} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

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

This land enters tapped. When this land enters, you gain 1 life. {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 one mana of any color that a land an opponent controls could produce.

({T}: Add {G}.)

({T}: Add {U} or {B}.) This land enters tapped.

({T}: Add {U}.)

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {B} or {G}.

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.

This land enters tapped. {T}: Add {B}, {G}, or {U}.

({T}: Add {B} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped unless you have two or more opponents. {T}: Add {G} or {U}.

({T}: Add {G} or {U}.) This land enters tapped.

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

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

({T}: Add {B}.)

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 {G} or {U}.

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

This land enters tapped unless you have two or more opponents. {T}: Add {B} or {G}.

({T}: Add {U} or {B}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {B} or {G}.) This land enters tapped.

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 Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

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.

Target creature gets +4/+4 until end of turn. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

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