{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

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

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. {T}, Sacrifice this land: Target creature with power 2 or less can't be blocked this turn.

{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}.)

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

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

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.

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

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.

({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 {B} or {G}.

Choose target opponent. You create X 3/3 green Beast creature tokens, where X is the number of artifacts that player controls.

Whenever a nontoken creature you control dies, put a slime counter on this enchantment, then create a green Ooze creature token with "This token's power and toughness are each equal to the number of slime counters on Gutter Grime."

Whenever another nontoken creature dies, you may create a 1/1 black Rat creature token. Rats you control have deathtouch.

Whenever a nontoken creature you control dies, create a 2/2 black Zombie creature token.

Equipped creature gets +2/+0 and has trample. Whenever equipped creature deals combat damage to a player, create that many 1/1 green and white Citizen creature tokens. Equip {3}

Draw three cards.

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Whenever a nontoken creature you control dies, this creature deals 1 damage to you and you draw a card.

Whenever a creature you control dies, you gain 1 life and draw a card.

Target player draws X cards and loses X life, where X is the number of artifacts you control.

Scry 2, then draw two cards. You lose 2 life. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Target player draws two cards and loses 2 life.

All creatures able to block this creature do so. When this creature dies, draw three cards.

Vigilance {T}: Add an amount of {G} equal to the greatest power among creatures you control. Sacrifice this creature: You gain life equal to the greatest toughness among other creatures you control.

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.

{1}{G}, Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. If this card is in a graveyard, effects from spells named Muscle Burst count it as a card named Muscle Burst.

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

Enchant land Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

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.

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}.)

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

Search your library for a basic land card, put it onto the battlefield, then shuffle. Suspend 2—{G} (Rather than cast this card from your hand, you may pay {G} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

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.

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

Sacrifice any number of artifacts, enchantments, and/or tokens. Return that many creature cards from your graveyard to the battlefield.

When this creature enters, each player sacrifices two creatures of their choice.

When this creature enters, each player sacrifices a nontoken creature of their choice.

Morph {X}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, all creatures get -X/-X until end of turn.

Destroy target artifact or enchantment. You may put a land card from your hand onto the battlefield.

Flying Whenever this creature or another creature you control dies, each opponent sacrifices a creature of their choice.

{1}, Sacrifice this creature: Choose one — • Destroy target artifact. • Destroy target enchantment. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Choose one or more — • Destroy target artifact. • Destroy target creature. • Destroy target enchantment. • Destroy target land. • Destroy target planeswalker.

Animate Chains — When this creature enters, each player sacrifices a nontoken creature of their choice.

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.

Escalate {G} (Pay this cost for each mode chosen beyond the first.) Choose one or more — • Destroy target artifact. • Destroy target enchantment. • Target creature gains hexproof and indestructible until end of turn.

When this creature enters, each player sacrifices a creature or planeswalker of their choice.

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

When this creature enters, each player sacrifices a creature of their choice.

Flying When this creature enters, draw a card if a creature died this turn. Otherwise, each player sacrifices a creature of their choice.

All creatures get -4/-4 until end of turn.

When this creature enters, each player sacrifices a creature of their choice.

Deathtouch When this creature leaves the battlefield, all creatures get -3/-3 until end of turn. Evoke {3}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

{T}: Return two target cards from an opponent's graveyard to their hand. Destroy target artifact or enchantment.

Tap four untapped creatures you control: Destroy target artifact or enchantment.

Flying When this creature enters, you may destroy target creature. Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

When this creature enters, each player sacrifices a creature or planeswalker of their choice. Each player who can't discards a card.

Destroy all artifacts and enchantments. For each permanent destroyed this way, its controller creates a 3/3 green Centaur creature token.

When this creature enters, you may destroy target artifact or enchantment.

Sacrifice this enchantment: Destroy target artifact or enchantment.

Flying Spear of the Void Dragon — Whenever this creature attacks, each opponent sacrifices a nonland permanent of their choice. Matter Absorption — Whenever an artifact is put into a graveyard from the battlefield or is put into exile from the battlefield, put two +1/+1 counters on this creature.

You lose X life and create X tapped Powerstone tokens. Then all creatures get -1/-1 until end of turn for each artifact you control. (The tokens are artifacts with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")