At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.

All creatures have haste.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

At the beginning of your upkeep, put two eon counters on this enchantment, then mill cards equal to the number of eon counters on it. If you would draw a card while your library has no cards in it, instead return a creature card from your graveyard to the battlefield. If you can't, you lose the game.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

At the beginning of your first main phase, mill three cards. Then you may pay {1} and 3 life. If you do, put a card from among those cards into your hand.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

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

Search your library for a card, put that card into your hand, then shuffle.

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.

Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Spree (Choose one or more additional costs.) + {1} — Search your library for a card, put it into your graveyard, then shuffle. + {2} — Return up to two creature cards with total mana value 4 or less from your graveyard to the battlefield.

As an additional cost to cast this spell, sacrifice a green creature. Search your library for a green creature card, put it onto the battlefield, then shuffle.

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.

As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

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

Imprint — When this artifact enters, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled card's colors.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{T}, Sacrifice this artifact: Add one mana of any color.

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

This spell can't be countered. Destroy target nonland permanent with mana value 3 or less.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

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

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

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.) Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.

As an additional cost to cast this spell, sacrifice a land. Search your library for a land card, put that card onto the battlefield, then shuffle.

As an additional cost to cast this spell, sacrifice a creature. Add {B}{B}{B}{B}.

Add {B}{B}{B}.

Search your library for a card, put that card into your graveyard, then shuffle.

Return target legendary creature card from your graveyard to the battlefield. That creature gains haste. Exile it at the beginning of the next end step. Splice onto Arcane {2}{B} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Destroy target artifact or enchantment. Its controller gains 4 life.

({G/P} can be paid with either {G} or 2 life.) Put target card from a graveyard on top of its owner's library.

Until end of turn, lands you control gain "Sacrifice this land: Add {B}."

As an additional cost to cast this spell, sacrifice a creature. Add an amount of {B} equal to the sacrificed creature's mana value.

Destroy target creature. If that creature dies this way, its controller creates two tokens that are copies of that creature, except their power is half that creature's power and their toughness is half that creature's toughness. Round up each time.

Add {B} for each creature card in your graveyard.

Search your library for a green creature card, reveal it, put it into your hand, then shuffle. At the beginning of your next upkeep, pay {2}{G}{G}. If you don't, you lose the game.

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

{T}: Add {C}{C}. This land deals 2 damage to you.

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

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}: Add {G}. Channel — {1}{G}, Discard this card: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.

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

{T}: Add {U}. This land deals 1 damage to you. Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

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

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{T}: Add {G} for each creature you control.

If this card is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.

{T}, Pay 1 life: Add one mana of any color.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

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

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

This land enters tapped unless you control a Forest. {T}: Add {G}. Delirium — {2}{G}{G}: This land becomes a copy of target permanent card in your graveyard until end of turn. Activate only if there are four or more card types among cards in your graveyard.

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

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

This land enters 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.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

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

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield. That creature gains haste. At the beginning of the next end step, sacrifice it.

Flying {T}: Add one mana of any color.

Flying, ward {2} Channel — {2}{G}, Discard this card: Return target card from your graveyard to your hand. Channel — {1}{U}, Discard this card: Return target creature to its owner's hand.

This creature gets -X/-X, where X is your life total.

{T}: Exile target land card from a graveyard. Add one mana of any color. {B}, {T}: Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life. {G}, {T}: Exile target creature card from a graveyard. You gain 2 life.

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

{T}: Add {B}. This creature deals 1 damage to you.

Exile this creature from your hand: Add {G}.

This creature enters with a +1/+1 counter on it for each creature card in your graveyard. {1}, Remove a +1/+1 counter from this creature: Regenerate this creature. Dredge 6 (If you would draw a card, you may mill six cards instead. If you do, return this card from your graveyard to your hand.)

{G}, {T}: Reveal cards from the top of your library until you reveal a basic land card. Put that card into your hand and all other cards revealed this way into your graveyard.

Convoke Flying When this creature enters, search your library for a card, exile it face down, then shuffle. For as long as that card remains exiled, you may play it. Spells you cast from exile have convoke.

Jarad gets +1/+1 for each creature card in your graveyard. {1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power. Sacrifice a Swamp and a Forest: Return this card from your graveyard to your hand.

Flying Whenever a player casts their second spell each turn, this creature connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Lord of Extinction's power and toughness are each equal to the number of cards in all graveyards.

As long as this creature is on the battlefield, it has all activated abilities of all creature cards in all graveyards.

Prime Speaker Zegana enters with X +1/+1 counters on it, where X is the greatest power among other creatures you control. When Prime Speaker Zegana enters, draw cards equal to its power.

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power. {G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

Flying, trample When Tanazir Quandrix enters, double the number of +1/+1 counters on target creature you control. Whenever Tanazir Quandrix attacks, you may have the base power and toughness of other creatures you control become equal to Tanazir Quandrix's power and toughness until end of turn.

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

This spell can't be countered. Trample, ward {4}, haste Toxic 4 (Players dealt combat damage by this creature also get four poison counters.)