{T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.
--
Arcane Lighthouse
Land
{T}: Add {C}.
{1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.
--
Arcane Sanctum
Land
Arcane Sanctum enters the battlefield tapped.
{T}: Add {W}, {U}, or {B}.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
--
Arid Mesa
Land
{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.
--
Ash Barrens
Land
{T}: Add {C}.
Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)
--
Azorius Chancery
Land
Azorius Chancery enters the battlefield tapped.
When Azorius Chancery enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{U}.
{2}
Azorius Signet
Artifact
{1}, {T}: Add {W}{U}.
--
Barkchannel Pathway
Land
{T}: Add {G}.
--
Tidechannel Pathway
Land
{T}: Add {U}.
--
Basilisk Gate
Land - Gate
{T}: Add {C}.
{2}, {T}: Target creature gets +X/+X until end of turn, where X is the number of Gates you control. Activate only as a sorcery.
--
Battlefield Forge
Land
{T}: Add {C}.
{T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you.
--
Blackcleave Cliffs
Land
Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {B} or {R}.
--
Blightstep Pathway
Land
{T}: Add {B}.
--
Searstep Pathway
Land
{T}: Add {R}.
--
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.
--
Blooming Marsh
Land
Blooming Marsh enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {B} or {G}.
--
Boros Garrison
Land
Boros Garrison enters the battlefield tapped.
When Boros Garrison enters the battlefield, return a land you control to its owner's hand.
{T}: Add {R}{W}.
{2}
Boros Signet
Artifact
{1}, {T}: Add {R}{W}.
--
Botanical Sanctum
Land
Botanical Sanctum enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {G} or {U}.
--
Bountiful Promenade
Land
Bountiful Promenade enters the battlefield tapped unless you have two or more opponents.
{T}: Add {G} or {W}.
--
Branchloft Pathway
Land
{T}: Add {G}.
--
Boulderloft Pathway
Land
{T}: Add {W}.
--
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.
--
Brightclimb Pathway
Land
{T}: Add {W}.
--
Grimclimb Pathway
Land
{T}: Add {B}.
--
Brushland
Land
{T}: Add {C}.
{T}: Add {G} or {W}. Brushland deals 1 damage to you.
--
Cabal Coffers
Land
{2}, {T}: Add {B} for each Swamp you control.
--
Cabal Stronghold
Land
{T}: Add {C}.
{3}, {T}: Add {B} for each basic Swamp you control.
--
Canopy Vista
Land - Forest Plains
({T}: Add {G} or {W}.)
Canopy Vista enters the battlefield tapped unless you control two or more basic lands.
--
Cascade Bluffs
Land
{T}: Add {C}.
{U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.
--
Cascading Cataracts
Land
Indestructible
{T}: Add {C}.
{5}, {T}: Add five mana in any combination of colors.
--
Castle Garenbrig
Land
Castle Garenbrig enters the battlefield tapped unless you control a Forest.
{T}: Add {G}.
{2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures.
--
Cave of Temptation
Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{4}, {T}, Sacrifice Cave of Temptation: Put two +1/+1 counters on target creature. Activate only as a sorcery.
--
Caves of Koilos
Land
{T}: Add {C}.
{T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.
--
Cinder Glade
Land - Mountain Forest
({T}: Add {R} or {G}.)
Cinder Glade enters the battlefield tapped unless you control two or more basic lands.
--
City of Brass
Land
Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.
--
Clearwater Pathway
Land
{T}: Add {U}.
--
Murkwater Pathway
Land
{T}: Add {B}.
--
Clifftop Retreat
Land
Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.
--
Concealed Courtyard
Land
Concealed Courtyard enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {W} or {B}.
--
Copperline Gorge
Land
Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {R} or {G}.
--
Cragcrown Pathway
Land
{T}: Add {R}.
--
Timbercrown Pathway
Land
{T}: Add {G}.
--
Crumbling Necropolis
Land
Crumbling Necropolis enters the battlefield tapped.
{T}: Add {U}, {B}, or {R}.
--
Crypt of the Eternals
Land
When Crypt of the Eternals enters the battlefield, you gain 1 life.
{T}: Add {C}.
{1}, {T}: Add {U}, {B}, or {R}.
--
Crystal Quarry
Land
{T}: Add {C}.
{5}, {T}: Add {W}{U}{B}{R}{G}.
--
Darkbore Pathway
Land
{T}: Add {B}.
--
Slitherbore Pathway
Land
{T}: Add {G}.
--
Darkslick Shores
Land
Darkslick Shores enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {U} or {B}.
--
Darkwater Catacombs
Land
{1}, {T}: Add {U}{B}.
--
Deathcap Glade
Land
Deathcap Glade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {B} or {G}.
--
Deserted Beach
Land
Deserted Beach enters the battlefield tapped unless you control two or more other lands.
{T}: Add {W} or {U}.
--
Detection Tower
Land
{T}: Add {C}.
{1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.
--
Dimir Aqueduct
Land
Dimir Aqueduct enters the battlefield tapped.
When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{B}.
{2}
Dimir Signet
Artifact
{1}, {T}: Add {U}{B}.
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
--
Dreamroot Cascade
Land
Dreamroot Cascade enters the battlefield tapped unless you control two or more other lands.
{T}: Add {G} or {U}.
--
Drowned Catacomb
Land
Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.
{2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.
--
Fire-Lit Thicket
Land
{T}: Add {C}.
{R/G}, {T}: Add {R}{R}, {R}{G}, or {G}{G}.
--
Flooded Grove
Land
{T}: Add {C}.
{G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.
--
Flooded Strand
Land
{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.
--
Frontier Bivouac
Land
Frontier Bivouac enters the battlefield tapped.
{T}: Add {G}, {U}, or {R}.
--
Gemstone Mine
Land
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.
--
Ghost Quarter
Land
{T}: Add {C}.
{T}, Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
--
Glacial Fortress
Land
Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.
--
Godless Shrine
Land - Plains Swamp
({T}: Add {W} or {B}.)
As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Golgari Rot Farm
Land
Golgari Rot Farm enters the battlefield tapped.
When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand.
{T}: Add {B}{G}.
{2}
Golgari Signet
Artifact
{1}, {T}: Add {B}{G}.
--
Gond Gate
Land - Gate
Gates you control enter the battlefield untapped.
{T}: Add {C}.
{T}: Add one mana of any color that a Gate you control could produce.
--
Graven Cairns
Land
{T}: Add {C}.
{B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.
{2}
Gruul Signet
Artifact
{1}, {T}: Add {R}{G}.
--
Gruul Turf
Land
Gruul Turf enters the battlefield tapped.
When Gruul Turf enters the battlefield, return a land you control to its owner's hand.
{T}: Add {R}{G}.
--
Hallowed Fountain
Land - Plains Island
({T}: Add {W} or {U}.)
As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Haunted Ridge
Land
Haunted Ridge enters the battlefield tapped unless you control two or more other lands.
{T}: Add {B} or {R}.
--
Heap Gate
Land - Gate
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{1}, {T}, Tap an untapped Gate you control: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
--
Henge of Ramos
Land
{T}: Add {C}.
{2}, {T}: Add one mana of any color.
--
Hengegate Pathway
Land
{T}: Add {W}.
--
Mistgate Pathway
Land
{T}: Add {U}.
--
Hinterland Harbor
Land
Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.
--
Homeward Path
Land
{T}: Add {C}.
{T}: Each player gains control of all creatures they own.
--
Indatha Triome
Land - Plains Swamp Forest
({T}: Add {W}, {B}, or {G}.)
Indatha Triome enters the battlefield tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)
--
Inspiring Vantage
Land
Inspiring Vantage enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {R} or {W}.
--
Isolated Chapel
Land
Isolated Chapel enters the battlefield tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.
--
Izzet Boilerworks
Land
Izzet Boilerworks enters the battlefield tapped.
When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{R}.
{2}
Izzet Signet
Artifact
{1}, {T}: Add {U}{R}.
--
Jungle Shrine
Land
Jungle Shrine enters the battlefield tapped.
{T}: Add {R}, {G}, or {W}.
--
Karplusan Forest
Land
{T}: Add {C}.
{T}: Add {R} or {G}. Karplusan Forest deals 1 damage to you.
--
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.)
--
Llanowar Wastes
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.
--
Luxury Suite
Land
Luxury Suite enters the battlefield tapped unless you have two or more opponents.
{T}: Add {B} or {R}.
--
Mana Confluence
Land
{T}, Pay 1 life: Add one mana of any color.
--
Marsh Flats
Land
{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.
--
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.
--
Morphic Pool
Land
Morphic Pool enters the battlefield tapped unless you have two or more opponents.
{T}: Add {U} or {B}.
--
Mossfire Valley
Land
{1}, {T}: Add {R}{G}.
--
Mystic Gate
Land
{T}: Add {C}.
{W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.
--
Mystic Monastery
Land
Mystic Monastery enters the battlefield tapped.
{T}: Add {U}, {R}, or {W}.
--
Needleverge Pathway
Land
{T}: Add {R}.
--
Pillarverge Pathway
Land
{T}: Add {W}.
--
Nomad Outpost
Land
Nomad Outpost enters the battlefield tapped.
{T}: Add {R}, {W}, or {B}.
--
Opulent Palace
Land
Opulent Palace enters the battlefield tapped.
{T}: Add {B}, {G}, or {U}.
--
Orzhov Basilica
Land
Orzhov Basilica enters the battlefield tapped.
When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand.
{T}: Add {W}{B}.
{2}
Orzhov Signet
Artifact
{1}, {T}: Add {W}{B}.
--
Overgrown Farmland
Land
Overgrown Farmland enters the battlefield tapped unless you control two or more other lands.
{T}: Add {G} or {W}.
--
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.
--
Painted Bluffs
Land - Desert
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
--
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.
--
Prairie Stream
Land - Plains Island
({T}: Add {W} or {U}.)
Prairie Stream enters the battlefield tapped unless you control two or more basic lands.
--
Rakdos Carnarium
Land
Rakdos Carnarium enters the battlefield tapped.
When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand.
{T}: Add {B}{R}.
{2}
Rakdos Signet
Artifact
{1}, {T}: Add {B}{R}.
--
Raugrin Triome
Land - Island Mountain Plains
({T}: Add {U}, {R}, or {W}.)
Raugrin Triome enters the battlefield tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)
--
Razorverge Thicket
Land
Razorverge Thicket enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {G} or {W}.
--
Reflecting Pool
Land
{T}: Add one mana of any type that a land you control could produce.
--
Rejuvenating Springs
Land
Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents.
{T}: Add {G} or {U}.
--
Riverglide Pathway
Land
{T}: Add {U}.
--
Lavaglide Pathway
Land
{T}: Add {R}.
--
Rockfall Vale
Land
Rockfall Vale enters the battlefield tapped unless you control two or more other lands.
{T}: Add {R} or {G}.
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
--
Rootbound Crag
Land
Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.
--
Rugged Prairie
Land
{T}: Add {C}.
{R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.
--
Sacred Foundry
Land - Mountain Plains
({T}: Add {R} or {W}.)
As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Sandsteppe Citadel
Land
Sandsteppe Citadel enters the battlefield tapped.
{T}: Add {W}, {B}, or {G}.
--
Savage Lands
Land
Savage Lands enters the battlefield tapped.
{T}: Add {B}, {R}, or {G}.
--
Savai Triome
Land - Mountain Plains Swamp
({T}: Add {R}, {W}, or {B}.)
Savai Triome enters the battlefield tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)
--
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.
--
School of the Unseen
Land
{T}: Add {C}.
{2}, {T}: Add one mana of any color.
--
Sea Gate
Land - Gate
Sea Gate enters the battlefield tapped.
As Sea Gate enters the battlefield, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.
--
Sea of Clouds
Land
Sea of Clouds enters the battlefield tapped unless you have two or more opponents.
{T}: Add {W} or {U}.
--
Seachrome Coast
Land
Seachrome Coast enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {W} or {U}.
--
Seaside Citadel
Land
Seaside Citadel enters the battlefield tapped.
{T}: Add {G}, {W}, or {U}.
--
Selesnya Sanctuary
Land
Selesnya Sanctuary enters the battlefield tapped.
When Selesnya Sanctuary enters the battlefield, return a land you control to its owner's hand.
{T}: Add {G}{W}.
{2}
Selesnya Signet
Artifact
{1}, {T}: Add {G}{W}.
--
Shadowblood Ridge
Land
{1}, {T}: Add {B}{R}.
--
Shattered Sanctum
Land
Shattered Sanctum enters the battlefield tapped unless you control two or more other lands.
{T}: Add {W} or {B}.
--
Shimmering Grotto
Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
--
Shipwreck Marsh
Land
Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands.
{T}: Add {U} or {B}.
--
Shivan Reef
Land
{T}: Add {C}.
{T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.
--
Simic Growth Chamber
Land
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}.
{2}
Simic Signet
Artifact
{1}, {T}: Add {G}{U}.
--
Skycloud Expanse
Land
{1}, {T}: Add {W}{U}.
--
Smoldering Marsh
Land - Swamp Mountain
({T}: Add {B} or {R}.)
Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.
--
Spectator Seating
Land
Spectator Seating enters the battlefield tapped unless you have two or more opponents.
{T}: Add {R} or {W}.
--
Spire Garden
Land
Spire Garden enters the battlefield tapped unless you have two or more opponents.
{T}: Add {R} or {G}.
--
Spirebluff Canal
Land
Spirebluff Canal enters the battlefield tapped unless you control two or fewer other lands.
{T}: Add {U} or {R}.
--
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.
--
Stormcarved Coast
Land
Stormcarved Coast enters the battlefield tapped unless you control two or more other lands.
{T}: Add {U} or {R}.
--
Strip Mine
Land
{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.
--
Sulfur Falls
Land
Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.
--
Sulfurous Springs
Land
{T}: Add {C}.
{T}: Add {B} or {R}. Sulfurous Springs deals 1 damage to you.
--
Sundown Pass
Land
Sundown Pass enters the battlefield tapped unless you control two or more other lands.
{T}: Add {R} or {W}.
--
Sungrass Prairie
Land
{1}, {T}: Add {G}{W}.
--
Sunken Hollow
Land - Island Swamp
({T}: Add {U} or {B}.)
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.
--
Sunken Ruins
Land
{T}: Add {C}.
{U/B}, {T}: Add {U}{U}, {U}{B}, or {B}{B}.
--
Sunpetal Grove
Land
Sunpetal Grove enters the battlefield tapped unless you control a Forest or a Plains.
{T}: Add {G} or {W}.
--
Tainted Field
Land
{T}: Add {C}.
{T}: Add {W} or {B}. Activate only if you control a Swamp.
--
Tainted Isle
Land
{T}: Add {C}.
{T}: Add {U} or {B}. Activate only if you control a Swamp.
--
Tainted Peak
Land
{T}: Add {C}.
{T}: Add {B} or {R}. Activate only if you control a Swamp.
--
Tainted Wood
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Activate only if you control a Swamp.
--
Tarnished Citadel
Land
{T}: Add {C}.
{T}: Add one mana of any color. Tarnished Citadel deals 3 damage to you.
--
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 Garden
Land - Forest Plains
({T}: Add {G} or {W}.)
As Temple Garden enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
--
Temple of Abandon
Land
Temple of Abandon enters the battlefield tapped.
When Temple of Abandon enters the battlefield, scry 1.
{T}: Add {R} or {G}.
--
Temple of Deceit
Land
Temple of Deceit enters the battlefield tapped.
When Temple of Deceit enters the battlefield, scry 1.
{T}: Add {U} or {B}.
--
Temple of Enlightenment
Land
Temple of Enlightenment enters the battlefield tapped.
When Temple of Enlightenment enters the battlefield, scry 1.
{T}: Add {W} or {U}.
--
Temple of Epiphany
Land
Temple of Epiphany enters the battlefield tapped.
When Temple of Epiphany enters the battlefield, scry 1.
{T}: Add {U} or {R}.
--
Temple of Malady
Land
Temple of Malady enters the battlefield tapped.
When Temple of Malady enters the battlefield, scry 1.
{T}: Add {B} or {G}.
--
Temple of Malice
Land
Temple of Malice enters the battlefield tapped.
When Temple of Malice enters the battlefield, scry 1.
{T}: Add {B} or {R}.
--
Temple of Mystery
Land
Temple of Mystery enters the battlefield tapped.
When Temple of Mystery enters the battlefield, scry 1.
{T}: Add {G} or {U}.
--
Temple of Plenty
Land
Temple of Plenty enters the battlefield tapped.
When Temple of Plenty enters the battlefield, scry 1.
{T}: Add {G} or {W}.
--
Temple of Silence
Land
Temple of Silence enters the battlefield tapped.
When Temple of Silence enters the battlefield, scry 1.
{T}: Add {W} or {B}.
--
Temple of Triumph
Land
Temple of Triumph enters the battlefield tapped.
When Temple of Triumph enters the battlefield, scry 1.
{T}: Add {R} or {W}.
--
Training Center
Land
Training Center enters the battlefield tapped unless you have two or more opponents.
{T}: Add {U} or {R}.
--
Twilight Mire
Land
{T}: Add {C}.
{B/G}, {T}: Add {B}{B}, {B}{G}, or {G}{G}.
--
Underground River
Land
{T}: Add {C}.
{T}: Add {U} or {B}. Underground River deals 1 damage to you.
--
Undergrowth Stadium
Land
Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.
{T}: Add {B} or {G}.
--
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.
--
Unknown Shores
Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
--
Vault of Champions
Land
Vault of Champions enters the battlefield tapped unless you have two or more opponents.
{T}: Add {W} or {B}.
--
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.