Whenever a permanent enters the battlefield tapped and under your control, untap it.
{3}
Ashnod's Altar
Artifact
Sacrifice a creature: Add {C}{C}.
--
Bad River
Land
Bad River enters the battlefield tapped.
{T}, Sacrifice Bad River: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
{2}{B}
Basal Sliver
Creature - Sliver
All Slivers have "Sacrifice this permanent: Add {B}{B}."
2 /
2
{2}{R}
Belligerent Sliver
Creature - Sliver
Sliver creatures you control have menace. (They can't be blocked except by two or more creatures.)
2 /
2
{3}{W}
Bonescythe Sliver
Creature - Sliver
Sliver creatures you control have double strike. (They deal both first-strike and regular combat damage.)
2 /
2
--
Canopy Vista
Land - Forest Plains
({T}: Add {G} or {W}.)
Canopy Vista enters the battlefield tapped unless you control two or more basic lands.
--
Cavern of Souls
Land
As Cavern of Souls enters the battlefield, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.
{3}
Chromatic Lantern
Artifact
Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color.
--
Cinder Glade
Land - Mountain Forest
({T}: Add {R} or {G}.)
Cinder Glade enters the battlefield tapped unless you control two or more basic lands.
--
Clifftop Retreat
Land
Clifftop Retreat enters the battlefield tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.
{1}{B}
Clot Sliver
Creature - Sliver
All Slivers have "{2}: Regenerate this permanent."
1 /
1
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{5}
Cryptic Gateway
Artifact
Tap two untapped creatures you control: You may put a creature card from your hand that shares a creature type with each creature tapped this way onto the battlefield.
{W}{U}
Crystalline Sliver
Creature - Sliver
All Slivers have shroud. (They can't be the targets of spells or abilities.)
2 /
2
{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.")
{B}{G}
Darkheart Sliver
Creature - Sliver
All Slivers have "Sacrifice this permanent: You gain 3 life."
2 /
2
{3}
Darksteel Ingot
Artifact
Indestructible
{T}: Add one mana of any color.
{1}{B}
Demonic Tutor
Sorcery
Search your library for a card, put that card into your hand, then shuffle.
{2}{G}
Descendants' Path
Enchantment
At the beginning of your upkeep, reveal the top card of your library. If it's a creature card that shares a creature type with a creature you control, you may cast it without paying its mana cost. If you don't cast it, put it on the bottom of your library.
{3}{U}
Distant Melody
Sorcery
Choose a creature type. Draw a card for each permanent you control of that type.
{4}
Door of Destinies
Artifact
As Door of Destinies enters the battlefield, choose a creature type.
Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.
Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.
--
Dragonskull Summit
Land
Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
--
Drowned Catacomb
Land
Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.
{T}: Add {U} or {B}.
{3}{W}
Essence Sliver
Creature - Sliver
Whenever a Sliver deals damage, its controller gains that much life.
3 /
3
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{1}{R}{W}{B}
Fervent Charge
Enchantment
Whenever a creature you control attacks, it gets +2/+2 until end of turn.
{1}{R}{G}
Firewake Sliver
Creature - Sliver
All Sliver creatures have haste.
All Slivers have "{1}, Sacrifice this permanent: Target Sliver creature gets +2/+2 until end of turn."
1 /
1
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
{U}
Galerider Sliver
Creature - Sliver
Sliver creatures you control have flying.
1 /
1
{1}{G}
Gemhide Sliver
Creature - Sliver
All Slivers have "{T}: Add one mana of any color."
1 /
1
{B}{R}
Ghostflame Sliver
Creature - Sliver
All Slivers are colorless.
2 /
2
--
Glacial Fortress
Land
Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.
--
Grasslands
Land
Grasslands enters the battlefield tapped.
{T}, Sacrifice Grasslands: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.
{1}{G}{W}
Harmonic Sliver
Creature - Sliver
All Slivers have "When this permanent enters the battlefield, destroy target artifact or enchantment."
1 /
1
{1}{R}
Heart Sliver
Creature - Sliver
All Sliver creatures have haste.
1 /
1
{3}
Heartstone
Artifact
Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{U}{B}
Hibernation Sliver
Creature - Sliver
All Slivers have "Pay 2 life: Return this permanent to its owner's hand."
2 /
2
--
Hinterland Harbor
Land
Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.
{2}{G}
Horned Sliver
Creature - Sliver
All Sliver creatures have trample.
2 /
2
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Isolated Chapel
Land
Isolated Chapel enters the battlefield tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.
--
Krosan Verge
Land
Krosan Verge enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Krosan Verge: Search your library for a Forest card and a Plains card, put them onto the battlefield tapped, then shuffle.
{1}{B}
Leeching Sliver
Creature - Sliver
Whenever a Sliver you control attacks, defending player loses 1 life.
1 /
1
{3}{B}{B}
Living Death
Sorcery
Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.
{3}{R}
Magma Sliver
Creature - Sliver
All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield."
3 /
3
{1}{G}
Manaweft Sliver
Creature - Sliver
Sliver creatures you control have "{T}: Add one mana of any color."
1 /
1
{G}
Mirri's Guile
Enchantment
At the beginning of your upkeep, you may look at the top three cards of your library, then put them back in any order.
{1}{W}{B}
Mortify
Instant
Destroy target creature or enchantment.
--
Mountain
Basic Land - Mountain
({T}: Add {R}.)
--
Mountain Valley
Land
Mountain Valley enters the battlefield tapped.
{T}, Sacrifice Mountain Valley: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.
{1}{G}
Muscle Sliver
Creature - Sliver
All Sliver creatures get +1/+1.
1 /
1
--
Mutavault
Land
{T}: Add {C}.
{1}: Mutavault becomes a 2/2 creature with all creature types until end of turn. It's still a land.
{1}{W}{B}
Necrotic Sliver
Creature - Sliver
All Slivers have "{3}, Sacrifice this permanent: Destroy target permanent."
2 /
2
{1}{W}{U}
Opaline Sliver
Creature - Sliver
All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card."
2 /
2
{3}{B}{B}
Patriarch's Bidding
Sorcery
Each player chooses a creature type. Each player returns all creature cards of a type chosen this way from their graveyard to the battlefield.
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Prairie Stream
Land - Plains Island
({T}: Add {W} or {U}.)
Prairie Stream enters the battlefield tapped unless you control two or more basic lands.
{1}{G}
Predatory Sliver
Creature - Sliver
Sliver creatures you control get +1/+1.
1 /
1
{3}{W}{W}
Pulmonic Sliver
Creature - Sliver
All Sliver creatures have flying.
All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."
3 /
3
{1}{B}{G}
Putrefy
Instant
Destroy target artifact or creature. It can't be regenerated.
{1}{G}
Quick Sliver
Creature - Sliver
Flash
Any player may cast Sliver spells as though they had flash.
1 /
1
--
Reflecting Pool
Land
{T}: Add one mana of any type that a land you control could produce.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{2}{U}
Rhystic Study
Enchantment
Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.
{3}{G}
Root Sliver
Creature - Sliver
This spell can't be countered.
Sliver spells can't be countered.
2 /
2
--
Rootbound Crag
Land
Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.
{1}{W}
Sentinel Sliver
Creature - Sliver
Sliver creatures you control have vigilance. (Attacking doesn't cause them to tap.)
2 /
2
{W}
Sidewinder Sliver
Creature - Sliver
All Sliver creatures have flanking. (Whenever a creature without flanking blocks a Sliver, the blocking creature gets -1/-1 until end of turn.)
1 /
1
{1}{W}
Sinew Sliver
Creature - Sliver
All Sliver creatures get +1/+1.
1 /
1
--
Sliver Hive
Land
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a Sliver spell.
{5}, {T}: Create a 1/1 colorless Sliver creature token. Activate only if you control a Sliver.
{W}{U}{B}{R}{G}
Sliver Hivelord
Legendary Creature - Sliver
Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.)
5 /
5
{W}{U}{B}{R}{G}
Sliver Legion
Legendary Creature - Sliver
All Sliver creatures get +1/+1 for each other Sliver on the battlefield.
7 /
7
{W}{U}{B}{R}{G}
Sliver Overlord
Legendary Creature - Sliver Mutant
{3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.
{3}: Gain control of target Sliver. (This effect lasts indefinitely.)
7 /
7
{W}{U}{B}{R}{G}
Sliver Queen
Legendary Creature - Sliver
{2}: Create a 1/1 colorless Sliver creature token.
7 /
7
--
Smoldering Marsh
Land - Swamp Mountain
({T}: Add {B} or {R}.)
Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.
{2}{B}
Spectral Sliver
Creature - Sliver Spirit
All Sliver creatures have "{2}: This creature gets +1/+1 until end of turn."
2 /
2
{R}{G}
Spined Sliver
Creature - Sliver
Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.
2 /
2
{R}
Striking Sliver
Creature - Sliver
Sliver creatures you control have first strike. (They deal combat damage before creatures without first strike.)
1 /
1
--
Sulfur Falls
Land
Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.
{T}: Add {U} or {R}.
--
Sunken Hollow
Land - Island Swamp
({T}: Add {U} or {B}.)
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.
--
Sunpetal Grove
Land
Sunpetal Grove enters the battlefield tapped unless you control a Forest or a Plains.
{T}: Add {G} or {W}.
{1}{W}{W}{U}
Supreme Verdict
Sorcery
This spell can't be countered.
Destroy all creatures.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{4}{U}
Synapse Sliver
Creature - Sliver
Whenever a Sliver deals combat damage to a player, its controller may draw a card.
3 /
3
{2}{B}
Syphon Sliver
Creature - Sliver
Sliver creatures you control have lifelink. (Damage dealt by a Sliver creature you control also causes you to gain that much life.)
2 /
2
{1}{W}
Talon Sliver
Creature - Sliver
All Sliver creatures have first strike.
1 /
1
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{4}{R}
Thorncaster Sliver
Creature - Sliver
Sliver creatures you control have "Whenever this creature attacks, it deals 1 damage to any target."
2 /
2
{3}{B}
Toxin Sliver
Creature - Sliver
Whenever a Sliver deals combat damage to a creature, destroy that creature. It can't be regenerated.
3 /
3
{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.
--
Unclaimed Territory
Land
As Unclaimed Territory enters the battlefield, choose a creature type.
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.
{2}{W}{B}
Utter End
Instant
Exile target nonland permanent.
{3}{B}
Vampiric Sliver
Creature - Sliver
All Sliver creatures have "Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature."
3 /
3
{1}{G}
Venom Sliver
Creature - Sliver
Sliver creatures you control have deathtouch. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)
1 /
1
{1}{U}
Winged Sliver
Creature - Sliver
All Sliver creatures have flying.
1 /
1
--
Woodland Cemetery
Land
Woodland Cemetery enters the battlefield tapped unless you control a Swamp or a Forest.