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.
{X}{R}{G}
Apocalypse Hydra
Creature - Hydra
Apocalypse Hydra enters the battlefield with X +1/+1 counters on it. If X is 5 or more, it enters the battlefield with an additional X +1/+1 counters on it.
{1}{R}, Remove a +1/+1 counter from Apocalypse Hydra: It deals 1 damage to any target.
0 /
0
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{3}{G}{G}
Asceticism
Enchantment
Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)
{1}{G}: Regenerate target creature.
{X}{X}{X}
Astral Cornucopia
Artifact
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.
{X}{R}
Banefire
Sorcery
Banefire deals X damage to any target.
If X is 5 or more, this spell can't be countered and the damage can't be prevented.
{B}{B}{R}
Bedevil
Instant
Destroy target artifact, creature, or planeswalker.
{8}{R}
Blasphemous Act
Sorcery
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.
--
Blood Crypt
Land - Swamp Mountain
({T}: Add {B} or {R}.)
As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{2}{B}{B}{G}{G}
Casualties of War
Sorcery
Choose one or more --
• Destroy target artifact.
• Destroy target creature.
• Destroy target enchantment.
• Destroy target land.
• Destroy target planeswalker.
--
Cinder Glade
Land - Mountain Forest
({T}: Add {R} or {G}.)
Cinder Glade enters the battlefield tapped unless you control two or more basic lands.
{X}{R}{G}
Clan Defiance
Sorcery
Choose one or more --
• Clan Defiance deals X damage to target creature with flying.
• Clan Defiance deals X damage to target creature without flying.
• Clan Defiance deals X damage to target player or planeswalker.
{X}{R}{R}
Comet Storm
Instant
Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.)
Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.
--
Command Beacon
Land
{T}: Add {C}.
{T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{X}{X}{X}{R}{R}
Crackle with Power
Sorcery
Crackle with Power deals five times X damage to each of up to X targets.
--
Crawling Barrens
Land
{T}: Add {C}.
{4}: Put two +1/+1 counters on Crawling Barrens. Then you may have it become a 0/0 Elemental creature until end of turn. It's still a land.
{2}{G}
Cultivate
Sorcery
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
--
Deathcap Glade
Land
Deathcap Glade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {B} or {G}.
{X}{3}{B}{B}
Diabolic Revelation
Sorcery
Search your library for up to X cards, put those cards into your hand, then shuffle.
{3}{G}{G}
Dictate of Karametra
Enchantment
Flash
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{2}
Doubling Cube
Artifact
{3}, {T}: Double the amount of each type of unspent mana you have.
{3}
Elementalist's Palette
Artifact
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}.
{X}{B}
Erebos's Intervention
Instant
Choose one --
• Target creature gets -X/-X until end of turn. You gain X life.
• Exile up to twice X target cards from graveyards.
{0}
Everflowing Chalice
Artifact
Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)
Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.
{T}: Add {C} for each charge counter on Everflowing Chalice.
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{X}{B}{B}
Exsanguinate
Sorcery
Each opponent loses X life. You gain life equal to the life lost this way.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{2}
Golgari Signet
Artifact
{1}, {T}: Add {B}{G}.
{2}
Gruul Signet
Artifact
{1}, {T}: Add {R}{G}.
{2}{G}
Heartbeat of Spring
Enchantment
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{G}
Helix Pinnacle
Enchantment
Shroud (This enchantment can't be the target of spells or abilities.)
{X}: Put X tower counters on Helix Pinnacle.
At the beginning of your upkeep, if there are 100 or more tower counters on Helix Pinnacle, you win the game.
{1}{G}
Heroic Intervention
Instant
Permanents you control gain hexproof and indestructible until end of turn.
{5}
Horizon Stone
Artifact
If you would lose unspent mana, that mana becomes colorless instead.
{X}{G}
Hungering Hydra
Creature - Hydra
Hungering Hydra enters the battlefield with X +1/+1 counters on it.
Hungering Hydra can't be blocked by more than one creature.
Whenever Hungering Hydra is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)
0 /
0
{G}
Ignoble Hierarch
Creature - Goblin Shaman
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
{T}: Add {B}, {R}, or {G}.
0 /
1
{X}{R}{R}
Jaya's Immolating Inferno
Legendary Sorcery
(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Jaya's Immolating Inferno deals X damage to each of up to three targets.
{5}{B}{R}
Kaervek the Merciless
Legendary Creature - Human Shaman
Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target.
5 /
4
--
Kessig Wolf Run
Land
{T}: Add {C}.
{X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.
{2}{G}
Kodama's Reach
Sorcery - Arcane
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
{X}{B}{R}{G}
Lavalanche
Sorcery
Lavalanche deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.
{2}{R}{R}
Leyline Tyrant
Creature - Dragon
Flying
You don't lose unspent red mana as steps and phases end.
When Leyline Tyrant dies, you may pay any amount of {R}. When you do, it deals that much damage to any target.
4 /
4
{2}{G}{G}
Leyline of Abundance
Enchantment
If Leyline of Abundance is in your opening hand, you may begin the game with it on the battlefield.
Whenever you tap a creature for mana, add an additional {G}.
{6}{G}{G}: Put a +1/+1 counter on each creature you control.
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{2}
Magewright's Stone
Artifact
{1}, {T}: Untap target creature that has an activated ability with {T} in its cost.
{G}
Magus of the Candelabra
Creature - Human Wizard
{X}, {T}: Untap X target lands.
1 /
2
{G}
Magus of the Vineyard
Creature - Human Wizard
At the beginning of each player's precombat main phase, that player adds {G}{G}.
1 /
1
{2}{R}
Mana Flare
Enchantment
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
{4}{G}{G}
Mana Reflection
Enchantment
If you tap a permanent for mana, it produces twice as much of that mana instead.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
{1}{G}
Nature's Lore
Sorcery
Search your library for a Forest card, put that card onto the battlefield, then shuffle.
{X}{X}{G}{G}
Neverwinter Hydra
Creature - Hydra
As Neverwinter Hydra enters the battlefield, roll X d6. It enters with a number of +1/+1 counters on it equal to the total of those results.
Trample
Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.)
0 /
0
{4}{G}{G}{G}
Nyxbloom Ancient
Enchantment Creature - Elemental
Trample
If you tap a permanent for mana, it produces three times as much of that mana instead.
5 /
5
{2}{G}
Omnath, Locus of Mana
Legendary Creature - Elemental
You don't lose unspent green mana as steps and phases end.
Omnath, Locus of Mana gets +1/+1 for each unspent green mana you have.
1 /
1
--
Overgrown Tomb
Land - Swamp Forest
({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.
{X}{X}{G}
Pest Infestation
Sorcery
Destroy up to X target artifacts and/or enchantments. Create twice X 1/1 black and green Pest creature tokens with "When this creature dies, you gain 1 life."
{3}
Puppet Strings
Artifact
{2}, {T}: You may tap or untap target creature.
{1}{B}{G}
Putrefy
Instant
Destroy target artifact or creature. It can't be regenerated.
{2}
Rakdos Signet
Artifact
{1}, {T}: Add {B}{R}.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
--
Savage Lands
Land
Savage Lands enters the battlefield tapped.
{T}: Add {B}, {R}, or {G}.
{X}{R}{G}
Savageborn Hydra
Creature - Hydra
Double strike
Savageborn Hydra enters the battlefield with X +1/+1 counters on it.
{1}{R/G}: Put a +1/+1 counter on Savageborn Hydra. Activate only as a sorcery.
0 /
0
{3}{G}{G}
Seedborn Muse
Creature - Spirit
Untap all permanents you control during each other player's untap step.
2 /
4
{1}{G}
Seeker of Skybreak
Creature - Elf
{T}: Untap target creature.
2 /
1
--
Smoldering Marsh
Land - Swamp Mountain
({T}: Add {B} or {R}.)
Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{X}{G}{G}
Squall Line
Instant
Squall Line deals X damage to each creature with flying and each player.
{3}
Staff of Domination
Artifact
{1}: Untap Staff of Domination.
{2}, {T}: You gain 1 life.
{3}, {T}: Untap target creature.
{4}, {T}: Tap target creature.
{5}, {T}: Draw a card.
--
Stomping Ground
Land - Mountain Forest
({T}: Add {R} or {G}.)
As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{4}
Sword of the Paruns
Artifact - Equipment
As long as equipped creature is tapped, tapped creatures you control get +2/+0.
As long as equipped creature is untapped, untapped creatures you control get +0/+2.
{3}: You may tap or untap equipped creature.
Equip {3}
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{B}{R}
Terminate
Instant
Destroy target creature. It can't be regenerated.
{X}{B}{B}
Torment of Hailfire
Sorcery
Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.
{3}
Umbral Mantle
Artifact - Equipment
Equipped creature has "{3}, {Q}: This creature gets +2/+2 until end of turn." ({Q} is the untap symbol.)
Equip {0}
{2}{G}
Unbound Flourishing
Enchantment
Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X.
Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains {X}, copy that spell or ability. You may choose new targets for the copy.
{3}{G}
Wilderness Reclamation
Enchantment
At the beginning of your end step, untap all lands you control.
{X}{X}{G}
Wildest Dreams
Sorcery
Return X target cards from your graveyard to your hand. Exile Wildest Dreams.
{1}{B}{R}{G}
Yurlok of Scorch Thrash
Legendary Creature - Viashino Shaman
Vigilance
A player losing unspent mana causes that player to lose that much life.
{1}, {T}: Each player adds {B}{R}{G}.
4 /
4
{5}{G}{G}
Zendikar Resurgent
Enchantment
Whenever you tap a land for mana, add one mana of any type that land produced. (The types of mana are white, blue, black, red, green, and colorless.)
Whenever you cast a creature spell, draw a card.
{3}{R}{G}
Zhur-Taa Ancient
Creature - Beast
Whenever a player taps a land for mana, that player adds one mana of any type that land produced.
7 /
5
{R}{G}
Zhur-Taa Druid
Creature - Human Druid
{T}: Add {G}.
Whenever you tap Zhur-Taa Druid for mana, it deals 1 damage to each opponent.