Whenever a permanent you control enters tapped, untap it.

You may spend mana as though it were mana of any color. {T}: Add {C}{C}{C}{C}{C}. {5}, {T}: Draw a card for each color among permanents you control.

You may play lands from your graveyard.

{3}, {T}: Double the amount of each type of unspent mana you have.

This artifact enters tapped. This artifact has all activated abilities of all lands on the battlefield. You may spend mana as though it were mana of any color to pay the activation costs of this artifact's abilities.

{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.

{T}: Add one mana of any color. At the beginning of your upkeep, put a night counter on this artifact. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color."

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

Look at the top five cards of your library. Put any number of permanent cards from among them onto the battlefield and the rest into your hand. Exile Genesis Ultimatum.

Add {R} for each tapped land your opponents control.

Reach (This creature can block creatures with flying.) You may play lands from your graveyard. If a land entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Untap two target lands.

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

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.

Flying Gadrak can't attack unless you control four or more artifacts. At the beginning of your end step, create a Treasure token for each nontoken creature that died this turn. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Flying, indestructible Kefnet can't attack or block unless you have seven or more cards in hand. {3}{U}: Draw a card, then you may return a land you control to its owner's hand.

Indestructible As long as your devotion to green and blue is less than seven, Kruphix isn't a creature. You have no maximum hand size. If you would lose unspent mana, that mana becomes colorless instead.

Partner with Lore Weaver (When this creature enters, target player may put Lore Weaver into their hand from their library, then shuffle.) {T}: Untap two target lands.

Flying You don't lose unspent red mana as steps and phases end. When this creature dies, you may pay any amount of {R}. When you do, it deals that much damage to any target.

You may play an additional land on each of your turns. {R}{G}, Return a land you control to its owner's hand: Target creature gains trample until end of turn.

You don't lose unspent green mana as steps and phases end. Omnath gets +1/+1 for each unspent green mana you have.

Whenever this creature attacks and isn't blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, this creature assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of {C} equal to the amount of mana that player lost this way.

Whenever you cast an instant or sorcery spell, you may pay {U}{R}. If you do, copy that spell. You may choose new targets for the copy. Whenever another nontoken creature you control enters, you may pay {G}{U}. If you do, create a token that's a copy of that creature.

Flash Flying, protection from blue Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

When this creature enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle.

Cumulative upkeep—Add {R}. (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.)

At the beginning of each upkeep, count the number of permanents. If the number is odd, until end of turn, red creatures get +1/+1 and whenever a player taps a Mountain for mana, that player adds an additional {R}. If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type.

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

Whenever a creature enters, you may add an amount of {C} equal to the number of creatures you control that share a creature type with it.

If you tap a permanent for mana, it produces twice as much of that mana instead.

Enchant artifact you control At the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.

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

Landfall — Whenever a land you control enters, exile the top card of your library. You may play that card for as long as it remains exiled. At the beginning of your end step, if there are cards exiled with this enchantment, put them into their owner's graveyard, then this enchantment deals that much damage to each opponent.

Boseiju enters tapped. {T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell can't be countered.

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

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

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

{T}: Add {C}. {R/G}, {T}: Add {R}{R}, {R}{G}, or {G}{G}.

{T}: Add {C}. {G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.

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

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

Hall of the Bandit Lord enters tapped. {T}, Pay 3 life: Add {C}. If that mana is spent on a creature spell, it gains haste.

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

({T}: Add {G}, {U}, or {R}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

({T}: Add {R} or {G}.) This land enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

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

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

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

This land enters tapped. As it enters, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than green. {T}: Add {G} or one mana of the chosen color.

This land enters tapped. As it enters, choose a color other than blue. {T}: Add {U} or one mana of the chosen color.

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land. −2: Add {R} for each Mountain you control. −5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"