Ancient Ooze's power and toughness are each equal to the total mana value of other creatures you control.

You may look at the top card of your library any time.

You may play lands from the top of your library.

Coven -- As long as you control three or more creatures with different powers, you may cast creature spells from the top of your library.

If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

{T}: Destroy target creature. It can't be regenerated.

You may play two additional lands on each of your turns.

At the beginning of your end step, you may reveal the top card of your library. If you do, each opponent loses life equal to that card's mana value.

Flying

At the beginning of each upkeep, create a 1/1 black and green Pest creature token with "When this creature dies, you gain 1 life."

Pay 10 life: Untap all lands you control. Activate only once each turn.

Blast Zone enters the battlefield with a charge counter on it.

{T}: Add {C}.

{X}{X}, {T}: Put X charge counters on Blast Zone.

{3}, {T}, Sacrifice Blast Zone: Destroy each nonland permanent with mana value equal to the number of charge counters on Blast Zone.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

{T}: Add {C}.

{3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

Flying

Whenever you cast a Spirit or Arcane spell, you may gain life equal to that spell's mana value.

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

You may play an additional land on each of your turns.

To solve -- You control seven or more lands. (If unsolved, solve at the beginning of your end step.)

Solved -- You may look at the top card of your library any time, and you may play lands and cast creature and enchantment spells from the top of your library.

{T}: Add {C}.

{T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.

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

You may play lands from your graveyard.

{T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.

As Conspiracy enters the battlefield, choose a creature type.

Creatures you control are the chosen type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Play with the top card of your library revealed.

You may play lands from the top of your library.

Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life.

Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.

Flash

This spell costs {2} less to cast for each creature that died this turn.

When Death-Rattle Oni enters the battlefield, destroy all other creatures that were dealt damage this turn.

Trample

Dodgy Jalopy's power is equal to the highest mana value among creatures you control.

Crew 3

Scavenge {2}{G} ({2}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Trample

At the beginning of your upkeep, sacrifice a creature. You gain life equal to that creature's toughness.

Domain -- This spell costs {2} less to cast for each basic land type among lands you control.

Flying

Domain -- At the beginning of your upkeep, sacrifice Draco unless you pay {10}. This cost is reduced by {2} for each basic land type among lands you control.

You may play an additional land on each of your turns.

Lands you control are every basic land type in addition to their other types.

This spell costs {X} less to cast, where X is the total mana value of Dragons you control.

Flying, trample

{2}{G}, Sacrifice a land: Return Earthquake Dragon from your graveyard to your hand.

You may play an additional land on each of your turns.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

{T}: Add {C}.

{2}, {T}: Each player draws a card, then discards a card.

This spell costs {X} less to cast, where X is the total power of creatures you control.

Trample

Golgari Rot Farm enters the battlefield tapped.

When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand.

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

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

{T}: Add {C}.

{2}{B}{G}, {T}, Sacrifice a creature: Draw a card.

This spell costs {1} less to cast if an opponent controls no basic lands.

Destroy target creature.

Hagra Broodpit enters the battlefield tapped.

{T}: Add {B}.

Demonstrate (When you cast this spell, you may copy it. If you do, choose an opponent to also copy it. Players may choose new targets for their copies.)

Return target card from your graveyard to your hand. You gain life equal to that card's mana value. Exile Healing Technique.

Frenzied Metabolism -- As an additional cost to cast this spell, you may remove any number of +1/+1 counters from among creatures you control. This spell costs {2} less to cast for each counter removed this way.

Vigilance, reach, ward {2}

Titanic -- Hierophant Bio-Titan can't be blocked by creatures with power 2 or less.

Secrets of the Soul -- {T}, Sacrifice another creature: Add an amount of {B} equal to the sacrificed creature's mana value.

When Iname as One enters the battlefield, if you cast it from your hand, you may search your library for a Spirit permanent card, put it onto the battlefield, then shuffle.

When Iname as One dies, you may exile it. If you do, return target Spirit permanent card from your graveyard to the battlefield.

At the beginning of each player's upkeep, that player mills a card. Then they create X 1/1 black Minion creature tokens, where X is the milled card's mana value.

At the beginning of your upkeep, you and target opponent each reveal the top card of your library. You each lose life equal to the mana value of the card revealed by the other player. You each put the card you revealed into your hand.

At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay {B}{B}{B}{B}.

Pay 1 life: Target creature gets -1/-1 until end of turn.

{T}: Add {C}.

{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

Reveal the top X cards of your library, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. You may put any number of permanent cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

{3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)

This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control.

Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.

{T}: Add {C}.

{3}, {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

As an additional cost to cast this spell, sacrifice an artifact or creature.

Draw cards equal to the mana value of the sacrificed permanent.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Mosswort Bridge enters the battlefield 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.

When you cast this spell, each player reveals the top card of their library. Naya Soulbeast enters the battlefield with X +1/+1 counters on it, where X is the total mana value of all cards revealed this way.

Trample

As Necroblossom Snarl enters the battlefield, you may reveal a Swamp or Forest card from your hand. If you don't, Necroblossom Snarl enters the battlefield tapped.

{T}: Add {B} or {G}.

{T}, Put a soul counter on Netherborn Altar: Put your commander into your hand from the command zone. Then you lose 3 life for each soul counter on Netherborn Altar.

You may play an additional land on each of your turns.

Play with the top card of your library revealed.

You may play lands from the top of your library.

({T}: Add {B} or {G}.)

As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

At the beginning of your end step, put an influence counter on Palantír of Orthanc and scry 2. Then target opponent may have you draw a card. If that player doesn't, you mill X cards, where X is the number of influence counters on Palantír of Orthanc, and that player loses life equal to the total mana value of those cards.

Path of Ancestry enters the battlefield 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.)

Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.)

{T}: Untap all Forests and all green creatures. Activate only once each turn.

{X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.

Trample

Whenever Primeval Herald enters the battlefield or attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

At the beginning of your upkeep, repeat the following process for each opponent in turn order. Reveal the top card of your library. That player may pay life equal to that card's mana value. If they do, exile that card. Otherwise, put it into your hand.

Reveal cards from the top of your library until you reveal a land card. Put that card onto the battlefield and the rest on the bottom of your library in any order. Clash with an opponent. If you win, return Recross the Paths to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

You have no maximum hand size.

{T}: Add {C}.

Restless Cottage enters the battlefield tapped.

{T}: Add {B} or {G}.

{2}{B}{G}: Restless Cottage becomes a 4/4 black and green Horror creature until end of turn. It's still a land.

Whenever Restless Cottage attacks, create a Food token and exile up to one target card from a graveyard.

Choose one --

• Return target permanent card from your graveyard to your hand.

• Put your commander into your hand from the command zone.

Entwine {2} (Choose both if you pay the entwine cost.)

Whenever you cast a creature spell with mana value 5 or greater, that creature enters the battlefield with X additional +1/+1 counters on it, where X is its mana value minus 4.

Creatures you control with three or more +1/+1 counters on them have haste.

{T}: Add {G}.

Choose target creature. When that creature dies this turn, search your library for a creature card with lesser mana value, put it onto the battlefield tapped, then shuffle.

As an additional cost to cast this spell, sacrifice a creature.

Add an amount of {B} equal to the sacrificed creature's mana value.

{T}: Add {C}.

{2}, {T}: Return target commander you own from the battlefield to your hand. Activate only during your turn.

Domain -- This spell costs {2} less to cast for each basic land type among lands you control.

Flying

Each creature you control has vigilance if it's white, hexproof if it's blue, lifelink if it's black, first strike if it's red, and trample if it's green.

If your life total is less than your starting life total, this spell costs {X} less to cast, where X is the difference.

You may exile a black card with mana value X from your hand rather than pay this spell's mana cost.

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

Choose up to two target permanent cards in your graveyard. Roll a d20 and add the total mana value of those cards.

1--14 | Return those cards to your hand.

15+ | Return those cards to your hand. You gain life equal to their total mana value.

This spell costs {X} less to cast, where X is the amount of life you gained this turn.

Trample

At the beginning of your end step, if you gained life this turn, you may cast Sproutback Trudge from your graveyard.

You draw X cards and you lose X life, where X is the mana value of a commander you own on the battlefield or in the command zone.

({T}: Add {B}.)

({T}: Add {B}.)

{T}: Add {C}.

{T}: Add {B} or {G}. Activate only if you control a Swamp.

{T}: Add {B}.

Channel -- {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)

Equipped creature gets +X/+X, where X is the greatest mana value among your commanders.

Equip {4}

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

This spell costs {2} less to cast for each creature card in your graveyard.

Whenever a creature you control dies, put it on the bottom of its owner's library.

{2}{B}, {T}, Pay 2 life: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

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.

This spell costs {X} less to cast, where X is the greatest power among creatures you control.

{T}: Add {G}{G}. You gain 2 life.

Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.

This spell costs {X} less to cast, where X is the greatest power among creatures you control.

Whenever one or more nontoken creatures you control die, create a green Fungus Dinosaur creature token with base power and toughness each equal to the total power of those creatures.

{2}, {T}: Double target creature's power until end of turn.

This spell costs {3} less to cast for each other spell cast this turn.

Trample, haste

Trample over planeswalkers (This creature can deal excess combat damage to the controller of the planeswalker it's attacking.)

Thrasta, Tempest's Roar has hexproof as long as it entered the battlefield this turn.

Tomb Fortress enters the battlefield tapped.

{T}: Add {B}.

{2}{B}{B}{B}, {T}, Exile Tomb Fortress: Mill four cards, then return a creature card from your graveyard to the battlefield. Activate only as a sorcery.

Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. If that card has mana value 3 or less, it enters with three additional +1/+1 counters on it. Put the rest on the bottom of your library in a random order.

As Turntimber, Serpentine Wood enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

{T}: Add {G}.

Flying

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

At the beginning of your upkeep, if you have the city's blessing, reveal the top card of your library and put it into your hand. Each opponent loses X life and you gain X life, where X is that card's mana value.

+2: Ugin, the Spirit Dragon deals 3 damage to any target.

-X: Exile each permanent with mana value X or less that's one or more colors.

-10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.

{T}: Add {B} or {G}.

Each land is a Swamp in addition to its other land types.

As an additional cost to cast this spell, collect evidence X, where X is the total mana value of the permanents this spell targets.

Destroy up to one target artifact, up to one target creature, up to one target enchantment, and up to one target planeswalker.

{T}: Add {C}.

{3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

You may play an additional land on each of your turns.

Wayward Swordtooth can't attack or block unless you have the city's blessing.

Woodland Cemetery enters the battlefield tapped unless you control a Swamp or a Forest.

{T}: Add {B} or {G}.

Each land is a Forest in addition to its other land types.