Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Target creature gets -X/-X until end of turn. You gain X life.

As an additional cost to cast this spell, pay X life. Each other player loses X life.

Draw four cards, then choose X cards in your hand and discard the rest.

Choose one — • Return target planeswalker card with mana value X or less from your graveyard to the battlefield. • Remove twice X loyalty counters from target planeswalker an opponent controls.

({G/P} can be paid with either {G} or 2 life.) Corrosive Gale deals X damage to each creature with flying.

Hurricane deals X damage to each creature with flying and each player.

For each creature, its controller sacrifices it unless they pay X life.

Mill X cards. Target player loses 2 life for each creature card put into your graveyard this way.

If X is 1, scry 1, then draw a card. If X is 2, you may choose a player. They return a creature they control to its owner's hand. If X is 3, create a 4/4 blue and red Elemental creature token. If X is 4 or more, do all of the above.

({B/P} can be paid with either {B} or 2 life.) Return target creature card with mana value X from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step.

Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)

Each player draws X cards.

Exile X target cards from a single graveyard.

Return X target creatures of the creature type of your choice to their owner's hand.

Create an X/X green Ooze creature token.

Return target creature card with mana value X or less from your graveyard to the battlefield.

Choose an opponent. You and that player each create an X/X green Treefolk creature token. Choose an opponent. You and that player each create X 1/1 green Elf Warrior creature tokens.

Assist (Another player can pay up to {X} of this spell's cost. You choose the value of X.) Support X. (Put a +1/+1 counter on each of up to X target creatures.) Each creature with a +1/+1 counter on it gains trample until end of turn.

Put a +1/+1 counter on each of X target creatures.

Tropical Storm deals X damage to each creature with flying and 1 additional damage to each blue creature.

Untap all permanents you control during each other player's untap step.

Players play with their hands revealed.

Your opponents play with their hands revealed. Sacrifice this enchantment: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.

Your opponents play with their hands revealed.

Up to one target creature gets -X/-X until end of turn. If X is 5 or more, return a creature card with mana value X or less from your graveyard to the battlefield tapped.

Counter target spell unless its controller pays {X}. Clash with an opponent. If you win, that spell's controller mills four cards. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

Cast this spell only during the declare blockers step. X target attacking creatures become blocked. Choking Vines deals 1 damage to each of those creatures. (This spell works on creatures that can't be blocked.)

Counter target spell unless its controller pays {X}.

Counter target spell unless its controller pays {X}. 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.)

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

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

Destroy target creature with mana value X.

Reveal the top X plus one cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard.

Choose one — • Target creature gets -X/-X until end of turn. You gain X life. • Exile up to twice X target cards from graveyards.

X can't be 0. Target spell's controller exiles it with X delay counters on it. At the beginning of each of that player's upkeeps, if that card is exiled, remove a delay counter from it. If the card has no delay counters on it, the player puts it onto the stack as a copy of the original spell.

Target creature gets -X/-X until end of turn. That creature gets an additional -3/-3 until end of turn if you controlled a Faerie as you cast this spell.

Assist (Another player can pay up to {X} of this spell's cost. You choose the value of X.) Destroy target creature with power X or less.

Tap X target nonland permanents.

Target creature gets +X/+0 until end of turn.

Tap X target creatures. Ferocious — If you control a creature with power 4 or greater, those creatures don't untap during their controllers' next untap steps.

Destroy target creature with power X or less.

Target creature gets +X/+X until end of turn. Create a 1/1 green and white Citizen creature token.

As an additional cost to cast this spell, you may exile any number of black cards from your hand. This spell costs {2} less to cast for each card exiled this way. March of Wretched Sorrow deals X damage to target creature or planeswalker and you gain X life.

Destroy target artifact or enchantment with mana value X. It can't be regenerated. You gain X life.

Draw X cards, then discard X cards. Create a 1/1 white Spirit creature token with flying for each card type among cards discarded this way.

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Draw X cards. For each card drawn this way, discard a card unless you sacrifice a permanent.

Return target nonland permanent with mana value X to its owner's hand. Draw a card.

Prevent all combat damage X target creatures would deal this turn.

Put a +1/+1 counter on each of up to X target creatures you control. Auras, Equipment, and modified creatures you control gain hexproof until end of turn. (Equipment, Auras you control, and counters are modifications.)

As an additional cost to cast this spell, exile X cards from your graveyard. You draw X cards and you lose X life.

Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell with mana value X.

Exile X target cards from target player's graveyard. For each card exiled this way, that player loses 1 life and you gain 1 life.

Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Target creature you control gets +X/+X and gains hexproof and indestructible until end of turn. (A creature 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.)

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

Target player reveals their hand. You choose a nonland card with mana value X or less from it. That player discards that card.

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

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

({T}: Add {U} or {B}.) This land enters tapped.

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

({T}: Add {G}.)

({T}: Add {G}.) This land enters tapped unless you control three or more other Forests. When this land enters untapped, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

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

({T}: Add {U} or {B}.) This land enters tapped.

({T}: Add {U}.)

({T}: Add {B}.) This land enters tapped. {B}, {T}: Each opponent loses 1 life. Activate only if you control two or more black permanents.

({T}: Add {U}.) This land enters tapped. {U}, {T}: Look at the top card of target player's library. Activate only if you control two or more blue permanents.

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

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

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

({T}: Add {G}.) This land enters tapped. {G}, {T}: You gain 1 life. Activate only if you control two or more green permanents.

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {B}.)

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

({T}: Add {B}.)

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

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

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

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

({T}: Add {B}.) This land enters tapped unless you control three or more other Swamps. When this land enters untapped, you may put target creature card from your graveyard on top of your library.

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