Whenever another artifact is put into a graveyard from the battlefield, this artifact deals 2 damage to that artifact's controller.

When a creature enters, sacrifice this artifact and create X 2/2 green Monkey creature tokens, where X is that creature's mana value.

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.)

At the beginning of your upkeep, each opponent may create a Treasure token. For each opponent who does, you create a Treasure token.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

Destroy target artifact. Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Destroy X target artifacts.

Destroy target artifact and all other artifacts with the same name as that artifact.

Each player who controls an artifact or enchantment creates a 2/2 green Bear creature token. Then destroy all artifacts and enchantments.

As an additional cost to cast this spell, you may pay {1}{R} and/or {1}{G} any number of times. Destroy target artifact. For each additional {1}{R} you paid, destroy another target artifact. For each additional {1}{G} you paid, destroy another target artifact, and you gain 1 life.

Destroy up to X target artifacts. If X is 5 or more, for each artifact destroyed this way, create a token that's a copy of it. Those tokens gain haste. Exile them at the beginning of the next end step.

Destroy all artifacts. They can't be regenerated.

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Draw three cards.

{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.

Draw a card for each creature you control. Ferocious — You gain 4 life for each creature you control with power 4 or greater.

Whenever an artifact is put into an opponent's graveyard from the battlefield, you may draw a card.

When this creature enters, put a +1/+1 counter on target creature. Each creature you control with a +1/+1 counter on it has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Whenever an artifact is put into a graveyard from the battlefield, you may gain 5 life.

When this creature enters, you may destroy target artifact. Artifacts your opponents control enter tapped.

Whenever this creature attacks, each player creates a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

At the beginning of each player's upkeep, that player sacrifices an artifact of their choice.

At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of artifacts they control.

At the beginning of your upkeep, put two descent counters on this enchantment. Then each player creates X Treasure tokens and this enchantment deals X damage to each player, where X is the number of descent counters on this enchantment.

Creatures you control have haste. Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

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.

Cast this spell only during combat before blockers are declared. All creatures gain menace until end of turn. (They can't be blocked except by two or more creatures.) Draw a card at the beginning of the next turn's upkeep.

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Target permanent you control gains hexproof and indestructible until end of turn. You gain 2 life. (A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)

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

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

({T}: Add {G}.)

As this land enters, you may reveal a Mountain or Forest card from your hand. If you don't, this land enters tapped. {T}: Add {R} or {G}.

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

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

{T}: Add {C}. {X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

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

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

({T}: Add {R}.)

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 one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

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

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}.

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

This land enters tapped. {T}: Add {G}. {1}{G}: This land becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

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.

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.

This creature enters with your choice of a trample counter or a menace counter on it. (A creature with menace can't be blocked except by two or more creatures.)

{X}{X}{1}: Destroy target noncreature artifact with mana value X.

This creature gets +1/+2 as long as you control a Forest.

When Kogla enters, it fights up to one target creature you don't control. Whenever Kogla attacks, destroy target artifact or enchantment defending player controls. {1}{G}: Return target Human you control to its owner's hand. Kogla gains indestructible until end of turn.

Changeling (This card is every creature type.) When this creature enters, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

First strike Whenever you cycle a card, this creature gets +2/+0 until end of turn.

This creature enters with two +1/+1 counters on it. At the beginning of your upkeep, you may move any number of +1/+1 counters from this creature onto another target creature.

When this creature enters, put two +1/+1 counters on target creature you control. Unearth {2}{G}{G} ({2}{G}{G}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Equipped creature gets +1/+1. Whenever this creature or equipped creature becomes blocked, it deals 1 damage to defending player. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

As long as you control a Mountain, this creature has menace. (It can't be blocked except by two or more creatures.)

Reach Towering Gibbon's power is equal to the greatest mana value among creatures you control.

Reach (This creature can block creatures with flying.)

When this creature enters, destroy target artifact.

Changeling (This card is every creature type.)

{2}{G}: This creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

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.

Each spell you cast that's red or green costs {1} less to cast.

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

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Tokens you control have "{T}: Add {G}." Choose a Background (You can have a Background as a second commander.)

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.

{T}: Add {C}. {T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

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

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.