If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.
{4}{G}{U}
Aesi, Tyrant of Gyre Strait
Legendary Creature - Serpent
You may play an additional land on each of your turns.
Landfall -- Whenever a land you control enters, you may draw a card.
5 /
5
{4}{G}{G}
Ancient Greenwarden
Creature - Elemental
Reach
You may play lands from your graveyard.
If a land entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
5 /
7
{3}{G}{G}
Ashaya, Soul of the Wild
Legendary Creature - Elemental
Ashaya, Soul of the Wild's power and toughness are each equal to the number of lands you control.
Nontoken creatures you control are Forest lands in addition to their other types. (They're still affected by summoning sickness.)
* /
*
{1}{G}{G}
Augmenter Pugilist
Creature - Troll Druid
Trample
As long as you control eight or more lands, Augmenter Pugilist gets +5/+5.
3 /
3
--
Echoing Equation
Sorcery
Choose target creature you control. Each other creature you control becomes a copy of it until end of turn, except those creatures aren't legendary.
3 /
3
{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
{X}{G}{G}
Awaken the Woods
Sorcery
Create X 1/1 green Forest Dryad land creature tokens. (They're affected by summoning sickness.)
{2}{G}
Azusa, Lost but Seeking
Legendary Creature - Human Monk
You may play two additional lands on each of your turns.
1 /
2
--
Barkchannel Pathway
Land
{T}: Add {G}.
--
Tidechannel Pathway
Land
{T}: Add {U}.
{2}{G}
Beast Within
Instant
Destroy target permanent. Its controller creates a 3/3 green Beast creature token.
--
Blighted Woodland
Land
{T}: Add {C}.
{3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
--
Brokers Hideout
Land
When Brokers Hideout enters the battlefield, sacrifice it. When you do, search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
{G}
Burgeoning
Enchantment
Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.
--
Cabaretti Courtyard
Land
When Cabaretti Courtyard enters the battlefield, sacrifice it. When you do, search your library for a basic Mountain, Forest, or Plains card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{1}{U}
Confounding Conundrum
Enchantment
When Confounding Conundrum enters the battlefield, draw a card.
Whenever a land enters the battlefield under an opponent's control, if that player had another land enter the battlefield under their control this turn, they return a land they control to its owner's hand.
{3}
Crucible of Worlds
Artifact
You may play lands from your graveyard.
{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.
{4}{G}{G}{G}
Cultivator Colossus
Creature - Plant Beast
Trample
Cultivator Colossus's power and toughness are each equal to the number of lands you control.
When Cultivator Colossus enters the battlefield, you may put a land card from your hand onto the battlefield tapped. If you do, draw a card and repeat this process.
* /
*
{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.")
--
Dreamroot Cascade
Land
Dreamroot Cascade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {G} or {U}.
{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
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{G}
Exploration
Enchantment
You may play an additional land on each of your turns.
--
Fabled Passage
Land
{T}, Sacrifice Fabled Passage: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.
{2}{G}{U}
Fathom Mage
Creature - Human Wizard
Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever a +1/+1 counter is put on Fathom Mage, you may draw a card.
1 /
1
{4}{U}{U}
Flood of Tears
Sorcery
Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.
--
Flooded Grove
Land
{T}: Add {C}.
{G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.
--
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}.)
--
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}.)
--
Ghost Town
Land
{T}: Add {C}.
{0}: Return Ghost Town to its owner's hand. Activate only if it's not your turn.
{3}{G}
Goreclaw, Terror of Qal Sisma
Legendary Creature - Bear
Creature spells you cast with power 4 or greater cost {2} less to cast.
Whenever Goreclaw, Terror of Qal Sisma attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn.
4 /
3
{X}{G}
Green Sun's Zenith
Sorcery
Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.
{3}{G}{G}
Greensleeves, Maro-Sorcerer
Legendary Creature - Elemental
Protection from planeswalkers and from Wizards
Greensleeves, Maro-Sorcerer's power and toughness are each equal to the number of lands you control.
Landfall -- Whenever a land enters the battlefield under your control, create a 3/3 green Badger creature token.
* /
*
{3}{G}
Guardian Project
Enchantment
Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.
{U}
Hedron Crab
Creature - Crab
Landfall -- Whenever a land enters the battlefield under your control, target player mills three cards.
0 /
2
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{1}{G}
Khalni Heart Expedition
Enchantment
Landfall -- Whenever a land enters the battlefield under your control, you may put a quest counter on Khalni Heart Expedition.
Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
{2}{G/U}
Kiora, Behemoth Beckoner
Legendary Planeswalker - Kiora
Whenever a creature you control with power 4 or greater enters, draw a card.
-1: Untap target permanent.
L:
7
{4}{G}{G}
Kodama of the East Tree
Legendary Creature - Spirit
Reach
Whenever another permanent you control enters, if it wasn't put onto the battlefield with this ability, you may put a permanent card with equal or lesser mana value from your hand onto the battlefield.
Partner (You can have two commanders if both have partner.)
6 /
6
{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.
{2}{U}
Laboratory Maniac
Creature - Human Wizard
If you would draw a card while your library has no cards in it, you win the game instead.
2 /
2
{1}{G}
Lotus Cobra
Creature - Snake
Landfall -- Whenever a land you control enters, add one mana of any color.
2 /
1
--
Maestros Theater
Land
When Maestros Theater enters the battlefield, sacrifice it. When you do, search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
{3}{G}
Migration Path
Sorcery
Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
Cycling {2} ({2}, Discard this card: Draw a card.)
--
Obscura Storefront
Land
When Obscura Storefront enters the battlefield, sacrifice it. When you do, search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
{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
{1}{U}{U}
Polymorphist's Jest
Instant
Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.
{U}
Pongify
Instant
Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.
{4}{G}{G}
Rampaging Baloths
Creature - Beast
Trample
Landfall -- Whenever a land you control enters, you may create a 4/4 green Beast creature token.
6 /
6
{1}{G}
Rampant Growth
Sorcery
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{2}{G}
Ramunap Excavator
Creature - Snake Cleric
You may play lands from your graveyard.
2 /
3
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
--
Riveteers Overlook
Land
When Riveteers Overlook enters the battlefield, sacrifice it. When you do, search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle and you gain 1 life.
{3}{U}{U}{U}
Roil Elemental
Creature - Elemental
Flying
Landfall -- Whenever a land enters the battlefield under your control, you may gain control of target creature for as long as you control Roil Elemental.
3 /
2
{2}{G}
Roiling Regrowth
Instant
Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
{U}
Ruin Crab
Creature - Crab
Landfall -- Whenever a land you control enters, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)
0 /
3
{3}{U}
Sakashima of a Thousand Faces
Legendary Creature - Human Rogue
You may have Sakashima of a Thousand Faces enter the battlefield as a copy of another creature you control, except it has Sakashima of a Thousand Faces's other abilities.
The "legend rule" doesn't apply to permanents you control.
Partner (You can have two commanders if both have partner.)
3 /
1
{2}{G}{G}
Scapeshift
Sorcery
Sacrifice any number of lands. Search your library for up to that many land cards, put them onto the battlefield tapped, 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
{4}{U}{U}{U}
Sea Gate Restoration
Sorcery
Draw cards equal to the number of cards in your hand plus one. You have no maximum hand size for the rest of the game.
--
Sea Gate, Reborn
Land
As Sea Gate, Reborn enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.
{T}: Add {U}.
{2}{G}
Song of the Dryads
Enchantment - Aura
Enchant permanent
Enchanted permanent is a colorless Forest land.
{X}{X}{G}
Sporocyst
Creature - Tyranid
Ravenous (This creature enters the battlefield with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
Defender
Spore Chimney -- When Sporocyst enters the battlefield, search your library for up to X basic land cards, put them onto the battlefield tapped, then shuffle.
0 /
0
--
Strip Mine
Land
{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.
{0}
Summoner's Pact
Instant
Search your library for a green creature card, reveal it, put it into your hand, then shuffle.
At the beginning of your next upkeep, pay {2}{G}{G}. If you don't, you lose the game.
{G}
Sylvan Safekeeper
Creature - Human Wizard
Sacrifice a land: Target creature you control gains shroud until end of turn. (It can't be the target of spells or abilities.)
1 /
1
{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
--
Tectonic Edge
Land
{T}: Add {C}.
{1}, {T}, Sacrifice Tectonic Edge: Destroy target nonbasic land. Activate only if an opponent controls four or more lands.
--
Temple of the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
--
Terminal Moraine
Land
{T}: Add {C}.
{2}, {T}, Sacrifice Terminal Moraine: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{U}{U}
Thassa's Oracle
Creature - Merfolk Wizard
When Thassa's Oracle enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)
1 /
3
{1}{G}
Three Visits
Sorcery
Search your library for a Forest card, put it onto the battlefield, then shuffle.
{3}{G}{G}
Titania, Protector of Argoth
Legendary Creature - Elemental
When Titania, Protector of Argoth enters, return target land card from your graveyard to the battlefield.
Whenever a land you control is put into a graveyard from the battlefield, create a 5/3 green Elemental creature token.
5 /
3
{1}{G}{G}
Topiary Stomper
Creature - Plant Dinosaur
Vigilance
When Topiary Stomper enters the battlefield, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Topiary Stomper can't attack or block unless you control seven or more lands.
4 /
4
{4}{G}
Traverse the Outlands
Sorcery
Search your library for up to X basic land cards, where X is the greatest power among creatures you control. Put those cards onto the battlefield tapped, then shuffle.
{1}{G}{U}
Uro, Titan of Nature's Wrath
Legendary Creature - Elder Giant
When Uro enters, sacrifice it unless it escaped.
Whenever Uro enters or attacks, you gain 3 life and draw a card, then you may put a land card from your hand onto the battlefield.
Escape--{G}{G}{U}{U}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
6 /
6
{4}{U}{U}
Walk the Aeons
Sorcery
Buyback--Sacrifice three Islands. (You may sacrifice three Islands in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
{1}, {T}, Sacrifice Waterlogged Grove: Draw a card.
{2}{G}
Wayward Swordtooth
Creature - Dinosaur
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
You may play an additional land on each of your turns.
Wayward Swordtooth can't attack or block unless you have the city's blessing.
5 /
5
{2}{U}{U}
Whelming Wave
Sorcery
Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.
--
Yavimaya Coast
Land
{T}: Add {C}.
{T}: Add {G} or {U}. Yavimaya Coast deals 1 damage to you.
{3}{U}{U}
Devastation Tide
Sorcery
Return all nonland permanents to their owners' hands.
Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
{2}{G}
Nissa, Resurgent Animist
Legendary Creature - Elf Scout
Landfall -- Whenever a land enters the battlefield under your control, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.
3 /
3
{3}{G}{G}
Vorinclex
Legendary Creature - Phyrexian Praetor
Trample, reach
When Vorinclex enters the battlefield, search your library for up to two Forest cards, reveal them, put them into your hand, then shuffle.
{6}{G}{G}: Exile Vorinclex, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery.
6 /
6
--
The Grand Evolution
Enchantment - Saga
(As this Saga enters and after your draw step, add a lore counter.)
I -- Mill ten cards. Put up to two creature cards from among the milled cards onto the battlefield.
II -- Distribute seven +1/+1 counters among any number of target creatures you control.
III -- Until end of turn, creatures you control gain "{1}: This creature fights target creature you don't control." Exile The Grand Evolution, then return it to the battlefield (front face up).
6 /
6
--
Beast
Token Creature - Beast
Green
3 /
3
--
Beast
Token Creature - Beast
Green
4 /
4
--
Copy
Token
Colorless
(This token can be used to represent a token that's a copy of a permanent.)