{X}{X}{1}, {T}: Tap X target lands.

This spell can't be countered. You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.

Contortionist Troupe enters the battlefield with X +1/+1 counters on it. Coven — At the beginning of your end step, if you control three or more creatures with different powers, put a +1/+1 counter on target creature you control.

Whenever a creature you control dies, put X +1/+1 counters on target creature you control, where X is the power of the creature that died.

Flying Nimbus Swimmer enters the battlefield with X +1/+1 counters on it.

Slurrk, All-Ingesting enters the battlefield with five +1/+1 counters on it. Whenever Slurrk or another creature you control dies, if it had a +1/+1 counter on it, put a +1/+1 counter on each creature you control that has a +1/+1 counter on it. Partner (You can have two commanders if both have partner.)

Reach, trample, protection from multicolored Stonecoil Serpent enters the battlefield with X +1/+1 counters on it.

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.

Ugin's Conjurant enters the battlefield with X +1/+1 counters on it. If damage would be dealt to Ugin's Conjurant while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from Ugin's Conjurant.

{G}{U}, {T}: Double the number of each kind of counter on target artifact, creature, or land.

Whenever you cast a silver-bordered spell, put a +1/+1 counter on Border Guardian. Whenever you cast a black-bordered spell, Border Guardian can't be blocked this turn. Whenever you cast a white-bordered spell, Border Guardian gains double strike until end of turn.

{G}, {T}: Put two +1/+1 counters on target creature with four or more legs. {1}{G}{G}, {T}: Until end of turn, all creatures able to block target creature with four or more legs do so.

Krakilin enters the battlefield with X +1/+1 counters on it. {1}{G}: Regenerate Krakilin.

Flying, trample Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.) Escape—{4}{G}{U}, Exile a land you control, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Art rampage 2 (Whenever this creature becomes blocked by a creature, it gets +2/+2 for each creature in the blocker's art beyond the first.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Water Always Wins — Whenever The Flood of Mars attacks, put a flood counter on another target creature or land. If it's a creature, it becomes a copy of The Flood of Mars. If it's a land, it becomes an Island in addition to its other types.

At the beginning of your end step, if you control a creature with power 5 or greater, you may draw a card. {T}: Add {C}.

Reveal the top X cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.

This spell costs {U}{U}{U} less to cast if an opponent has drawn four or more cards this turn. Draw X cards.

Choose one — • Each player draws X cards. • Each player mills X cards.

Draw X cards. If X is 10 or more, instead shuffle your graveyard into your library, draw X cards, untap up to five lands, and you have no maximum hand size for the rest of the game. Exile Finale of Revelation.

Players have no maximum hand size. {X}{X}, {T}: Each player draws X cards. {2}{U}, {T}: Each opponent mills cards equal to the number of cards in their hand.

When Gadwick, the Wizened enters the battlefield, draw X cards. Whenever you cast a blue spell, tap target nonland permanent an opponent controls.

When you cast this spell, you gain half X life and draw half X cards. Round down each time. Flying, trample Hydroid Krasis enters the battlefield with X +1/+1 counters on it.

Each player draws X cards.

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

You may cast Silver Scrutiny as though it had flash if X is 3 or less. Draw X cards.

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.)

{T}: Add {C}. {1}, {T}, Sacrifice Bant Panorama: Search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle.

Castle Vantress enters the battlefield tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.

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

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

If you control two or more other lands, Lair of the Hydra enters the battlefield tapped. {T}: Add {G}. {X}{G}: Until end of turn, Lair of the Hydra becomes an X/X green Hydra creature. It's still a land. X can't be 0.

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.)

Quandrix Campus enters the battlefield tapped. {T}: Add {G} or {U}. {4}, {T}: Scry 1.

Simic Growth Chamber enters the battlefield tapped. When Simic Growth Chamber enters the battlefield, return a land you control to its owner's hand. {T}: Add {G}{U}.

Tanglepool Bridge enters the battlefield tapped. Indestructible {T}: Add {G} or {U}.

Temple of Mystery enters the battlefield tapped. When Temple of Mystery enters the battlefield, scry 1. {T}: Add {G} or {U}.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that appears on your top. (A top is an outerwear garment worn on the upper body.)

The Surgical Bay enters the battlefield tapped. {T}: Add {U}. {1}{U}, {T}, Sacrifice The Surgical Bay: Draw a card.

Thornwood Falls enters the battlefield tapped. When Thornwood Falls enters the battlefield, you gain 1 life. {T}: Add {G} or {U}.

Woodland Stream enters the battlefield tapped. {T}: Add {G} or {U}.

Until end of turn, target non-Brushwagg creature gets +1/+1 for each supertype, card type, and subtype it has.

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.

Astral Cornucopia enters the battlefield with X charge counters on it. {T}: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia.

Whenever you cast a spell with {X} in its mana cost, put two charge counters on Elementalist's Palette. {T}: Add one mana of any color. {T}: Add {C} for each charge counter on Elementalist's Palette. Spend this mana only on costs that contain {X}.

Mana Bloom enters the battlefield with X charge counters on it. Remove a charge counter from Mana Bloom: Add one mana of any color. Activate only once each turn. At the beginning of your upkeep, if Mana Bloom has no charge counters on it, return it to its owner's hand.

Each player may search their library for up to X basic land cards and put them onto the battlefield tapped. Then each player who searched their library this way shuffles.

{T}: Add {C}. {T}: Add {G} or {U}. Talisman of Curiosity deals 1 damage to you.

Enchant artifact or creature When Awakened Awareness enters the battlefield, put X +1/+1 counters on enchanted permanent. As long as enchanted permanent is a creature, it has base power and toughness 1/1.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Gain control of target creature with mana value X.

Gain control of X target creatures and/or planeswalkers.

Target creature you control gets +X/+X until end of turn. Then it fights up to one target creature you don't control.

Target creature you control deals damage equal to its power to each of X target creatures and/or planeswalkers.

Steelbane Hydra enters the battlefield with X +1/+1 counters on it. {2}{G}, Remove a +1/+1 counter from Steelbane Hydra: Destroy target artifact or enchantment.

Storm (When you cast this spell, copy it for each spell cast before it this turn. Copies become tokens.) Aeve, Progenitor Ooze isn't legendary if it's a token. Aeve enters the battlefield with a +1/+1 counter on it for each other Ooze you control.

Oozes you control get +1/+1. At the beginning of your upkeep, if you control a commander, create a token that's a copy of Biowaste Blob.

Create X X/X green Ooze creature tokens.

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

Trample Ochre Jelly enters the battlefield with X +1/+1 counters on it. Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that's a copy of it at the beginning of the next end step. The token enters the battlefield with half that many +1/+1 counters on it, rounded down.

{X}, {T}: Search your library for a creature card with mana value X or less, reveal it, put it into your hand, then shuffle.