You may play an additional land on each of your turns.
Landfall -- Whenever a land enters the battlefield under your control, you may draw a card.
5 /
5
{U}
An Offer You Can't Refuse
Instant
Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")
{1}{U}
Arcane Denial
Instant
Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{B}{G}
Assassin's Trophy
Instant
Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
{5}{G}{G}
Avenger of Zendikar
Creature - Elemental
When Avenger of Zendikar enters the battlefield, create a 0/1 green Plant creature token for each land you control.
Landfall -- Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.
5 /
5
{G}{U}
Biomancer's Familiar
Creature - Mutant
Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{T}: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.
2 /
2
{G}
Birds of Paradise
Creature - Bird
Flying
{T}: Add one mana of any color.
0 /
1
{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.
--
Bloodstained Mire
Land
{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.
{1}{G}
Bloom Tender
Creature - Elf Druid
{T}: For each color among permanents you control, add one mana of that color.
1 /
1
--
Bojuka Bog
Land
Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile target player's graveyard.
{T}: Add {B}.
--
Boseiju, Who Endures
Legendary Land
{T}: Add {G}.
Channel -- {1}{G}, Discard Boseiju, Who Endures: 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.
--
Breeding Pool
Land - Forest Island
({T}: Add {G} or {U}.)
As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{2}{R}
Chaos Warp
Instant
The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.
{3}
Chromatic Lantern
Artifact
Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{2}{G}{G}
Conduit of Worlds
Artifact
You may play lands from your graveyard.
{T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.
{4}{U}{U}
Consecrated Sphinx
Creature - Sphinx
Flying
Whenever an opponent draws a card, you may draw two cards.
4 /
6
{1}{G}
Constant Mists
Instant
Buyback--Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Prevent all combat damage that would be dealt this turn.
{U}{U}
Counterspell
Instant
Counter target spell.
{3}
Crucible of Worlds
Artifact
You may play lands from your graveyard.
--
Crumbling Necropolis
Land
Crumbling Necropolis enters the battlefield tapped.
{T}: Add {U}, {B}, or {R}.
{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.
{U}
Curiosity
Enchantment - Aura
Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.
{5}{B}
Curtains' Call
Instant
Undaunted (This spell costs {1} less to cast for each opponent.)
Destroy two target creatures.
{1}{U}
Cyclonic Rift
Instant
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.")
{3}{B}{B}
Dark Petition
Sorcery
Search your library for a card, put that card into your hand, then shuffle.
Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, add {B}{B}{B}.
{3}{B}
Deadly Rollick
Instant
If you control a commander, you may cast this spell without paying its mana cost.
Exile target creature.
{2}{R}
Deflecting Swat
Instant
If you control a commander, you may cast this spell without paying its mana cost.
You may choose new targets for target spell or ability.
{5}{R}{R}
Devastation
Sorcery
Destroy all creatures and lands.
{2}{G}
Dryad of the Ilysian Grove
Enchantment Creature - Nymph Dryad
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.
2 /
4
{2}{G}
Entish Restoration
Instant
Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If you control a creature with power 4 or greater, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.
{1}{G}{G}
Eternal Witness
Creature - Human Shaman
When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.
2 /
1
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{7}{U}{U}
Expropriate
Sorcery
Council's dilemma -- Starting with you, each player votes for time or money. For each time vote, take an extra turn after this one. For each money vote, choose a permanent owned by the voter and gain control of it. Exile Expropriate.
{4}{B}
Exquisite Blood
Enchantment
Whenever an opponent loses life, you gain that much life.
{X}{B}{B}
Exsanguinate
Sorcery
Each opponent loses X life. You gain life equal to the life lost this way.
{1}{G}
Farseek
Sorcery
Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
--
Field of the Dead
Land
Field of the Dead enters the battlefield tapped.
{T}: Add {C}.
Whenever Field of the Dead or another land enters the battlefield under your control, if you control seven or more lands with different names, create a 2/2 black Zombie creature token.
{2}{U}
Fierce Guardianship
Instant
If you control a commander, you may cast this spell without paying its mana cost.
Counter target noncreature spell.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{7}{B}{B}
In Garruk's Wake
Sorcery
Destroy all creatures you don't control and all planeswalkers you don't control.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{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.
{4}{R}{R}
Jokulhaups
Sorcery
Destroy all artifacts, creatures, and lands. They can't be regenerated.
{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
{3}{R}{R}
Keldon Firebombers
Creature - Human Soldier
When Keldon Firebombers enters the battlefield, each player sacrifices all lands they control except for three.
3 /
3
{1}{U}{B}{R}
Kess, Dissident Mage
Legendary Creature - Human Wizard
Flying
Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead.
3 /
4
--
Ketria Triome
Land - Forest Island Mountain
({T}: Add {G}, {U}, or {R}.)
Ketria Triome enters the battlefield tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)
{2}{U}{U}
Leyline of Anticipation
Enchantment
If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.
{5}{U}{U}
Mind's Dilation
Enchantment
Whenever an opponent casts their first spell each turn, that player exiles the top card of their library. If it's a nonland card, you may cast it without paying its mana cost.
--
Misty Rainforest
Land
{T}, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
{3}{B}{G}{U}
Muldrotha, the Gravetide
Legendary Creature - Elemental Avatar
During each of your turns, you may play a land and cast a permanent spell of each permanent type from your graveyard. (If a card has multiple permanent types, choose one as you play it.)
6 /
6
{1}{U}
Negate
Instant
Counter target noncreature spell.
{3}{R}{R}{G}{G}
Omnath, Locus of Rage
Legendary Creature - Elemental
Landfall -- Whenever a land enters the battlefield under your control, create a 5/5 red and green Elemental creature token.
Whenever Omnath, Locus of Rage or another Elemental you control dies, Omnath deals 3 damage to any target.
5 /
5
{3}{G}
Oracle of Mul Daya
Creature - Elf Shaman
You may play an additional land on each of your turns.
Play with the top card of your library revealed.
You may play lands from the top of your library.
2 /
2
--
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.
{3}{B}{B}
Polluted Bonds
Enchantment
Whenever a land enters the battlefield under an opponent's control, that player loses 2 life and you gain 2 life.
--
Polluted Delta
Land
{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
--
Prismatic Vista
Land
{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle.
{2}{G}
Ramunap Excavator
Creature - Snake Cleric
You may play lands from your graveyard.
2 /
3
{2}{G}{U}
Rashmi, Eternities Crafter
Legendary Creature - Elf Druid
Whenever you cast your first spell each turn, reveal the top card of your library. You may cast it without paying its mana cost if it's a spell with lesser mana value. If you don't cast it, put it into your hand.
2 /
3
--
Scalding Tarn
Land
{T}, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.
{2}{G}
Scute Swarm
Creature - Insect
Landfall -- Whenever a land enters the battlefield under your control, create a 1/1 green Insect creature token. If you control six or more lands, create a token that's a copy of Scute Swarm instead.
1 /
1
{3}{G}{G}
Seedborn Muse
Creature - Spirit
Untap all permanents you control during each other player's untap step.
2 /
4
{2}{B}{B}
Sheoldred, the Apocalypse
Legendary Creature - Phyrexian Praetor
Deathtouch
Whenever you draw a card, you gain 2 life.
Whenever an opponent draws a card, they lose 2 life.
4 /
5
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
--
Steam Vents
Land - Island Mountain
({T}: Add {U} or {R}.)
As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
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.
--
Strip Mine
Land
{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{U}
Swan Song
Instant
Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
{2}{B}{B}
Tainted Aether
Enchantment
Whenever a creature enters the battlefield, its controller sacrifices a creature or land.
{3}{G}{U}
Tatyova, Benthic Druid
Legendary Creature - Merfolk Druid
Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life and draw a card.
3 /
3
{2}
Thought Vessel
Artifact
You have no maximum hand size.
{T}: Add {C}.
{G}{U}
Thrasios, Triton Hero
Legendary Creature - Merfolk Wizard
{4}: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.
Partner (You can have two commanders if both have partner.)
1 /
3
--
Tolaria West
Land
Tolaria West enters the battlefield tapped.
{T}: Add {U}.
Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with mana value 0, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
{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.
--
Training Center
Land
Training Center enters the battlefield tapped unless you have two or more opponents.
{T}: Add {U} or {R}.
{U}
Training Grounds
Enchantment
Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
--
Undiscovered Paradise
Land
{T}: Add one mana of any color. During your next untap step, as you untap your permanents, return Undiscovered Paradise to its owner's hand.
--
Urborg, Tomb of Yawgmoth
Legendary Land
Each land is a Swamp in addition to its other land types.
{R}
Vandalblast
Sorcery
Destroy target artifact you don't control.
Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
--
Verdant Catacombs
Land
{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.
{1}{B}{R}
Vial Smasher the Fierce
Legendary Creature - Goblin Berserker
Whenever you cast your first spell each turn, choose an opponent at random. Vial Smasher the Fierce deals damage equal to that spell's mana value to that player or a planeswalker that player controls.
Partner (You can have two commanders if both have partner.)