{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.
{1}{W}{W}
Aura of Silence
Enchantment
Artifact and enchantment spells your opponents cast cost {2} more to cast.
Sacrifice Aura of Silence: Destroy target artifact or enchantment.
{2}{W}
Aven Mindcensor
Creature - Bird Wizard
Flash
Flying
If an opponent would search a library, that player searches the top four cards of that library instead.
2 /
1
{G}
Birds of Paradise
Creature - Bird
Flying
{T}: Add one mana of any color.
0 /
1
{1}{G}
Bloom Tender
Creature - Elf Druid
{T}: For each color among permanents you control, add one mana of that color.
1 /
1
{U}
Brainstorm
Instant
Draw three cards, then put two cards from your hand on top of your library in any order.
{G}
Carpet of Flowers
Enchantment
At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.
{0}
Chrome Mox
Artifact
Imprint -- When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.
{T}: Add one mana of any of the exiled card's colors.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{1}{U}
Copy Artifact
Enchantment
You may have Copy Artifact enter the battlefield as a copy of any artifact on the battlefield, except it's an enchantment in addition to its other types.
{U}{U}
Counterbalance
Enchantment
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
{U}{U}
Counterspell
Instant
Counter target spell.
{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.")
{2}
Damping Sphere
Artifact
If a land is tapped for two or more mana, it produces {C} instead of any other type and amount.
Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn.
{1}{G}
Devoted Druid
Creature - Elf Druid
{T}: Add {G}.
Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.
0 /
2
{U}
Dispel
Instant
Counter target instant spell.
{W}{U}
Dovin's Veto
Instant
This spell can't be countered.
Counter target noncreature spell.
{2}{W}
Eidolon of Rhetoric
Enchantment Creature - Spirit
Each player can't cast more than one spell each turn.
1 /
4
{G}{W}
Eladamri's Call
Instant
Search your library for a creature card, reveal that card, put it into your hand, then shuffle.
{G}
Elvish Mystic
Creature - Elf Druid
{T}: Add {G}.
1 /
1
{W}
Enlightened Tutor
Instant
Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.
{2}
Fellwar Stone
Artifact
{T}: Add one mana of any color that a land an opponent controls could produce.
{1}{U}
Flash
Instant
You may put a creature card from your hand onto the battlefield. If you do, sacrifice it unless you pay its mana cost reduced by up to {2}.
{U}
Flusterstorm
Instant
Counter target instant or sorcery spell unless its controller pays {1}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)
{3}{U}{U}
Force of Will
Instant
You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.
{2}{U}
Freed from the Real
Enchantment - Aura
Enchant creature
{U}: Tap enchanted creature.
{U}: Untap enchanted creature.
{G}{W}
Gaddock Teeg
Legendary Creature - Kithkin Advisor
Noncreature spells with mana value 4 or greater can't be cast.
Noncreature spells with {X} in their mana costs can't be cast.
2 /
2
{1}{U}
Gilded Drake
Creature - Drake
Flying
When Gilded Drake enters the battlefield, exchange control of Gilded Drake and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice Gilded Drake. This ability still resolves if its target becomes illegal.
3 /
3
{2}{W}{U}
Grand Arbiter Augustin IV
Legendary Creature - Human Advisor
White spells you cast cost {1} less to cast.
Blue spells you cast cost {1} less to cast.
Spells your opponents cast cost {1} more to cast.
2 /
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.
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{G}
Llanowar Elves
Creature - Elf Druid
{T}: Add {G}.
1 /
1
{U}{U}
Mana Drain
Instant
Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
{1}
Mana Vault
Artifact
Mana Vault doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.
{1}{U}
Merchant Scroll
Sorcery
Search your library for a blue instant card, reveal that card, put it into your hand, 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.
{U}{U}
Muddle the Mixture
Instant
Counter target instant or sorcery spell.
Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
{U}
Mystic Remora
Enchantment
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.
{U}
Mystical Tutor
Instant
Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.
{G}
Nature's Claim
Instant
Destroy target artifact or enchantment. Its controller gains 4 life.
{1}{U}
Negate
Instant
Counter target noncreature spell.
{0}
Pact of Negation
Instant
Counter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
{1}{G}
Paradise Druid
Creature - Elf Druid
Paradise Druid has hexproof as long as it's untapped. (It can't be the target of spells or abilities your opponents control.)
{T}: Add one mana of any color.
2 /
1
{1}{G}{W}{U}
Phelddagrif
Legendary Creature - Phelddagrif
{G}: Phelddagrif gains trample until end of turn. Target opponent creates a 1/1 green Hippo creature token.
{W}: Phelddagrif gains flying until end of turn. Target opponent gains 2 life.
{U}: Return Phelddagrif to its owner's hand. Target opponent may draw a card.
4 /
4
{U}
Ponder
Sorcery
Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.
{U}
Preordain
Sorcery
Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
{1}{G}
Priest of Titania
Creature - Elf Druid
{T}: Add {G} for each Elf on the battlefield.
1 /
1
{5}{G}{G}
Protean Hulk
Creature - Beast
When Protean Hulk dies, search your library for any number of creature cards with total mana value 6 or less, put them onto the battlefield, then shuffle.
6 /
6
{1}{G}{W}{U}
Questing Phelddagrif
Creature - Phelddagrif
{G}: Questing Phelddagrif gets +1/+1 until end of turn. Target opponent creates a 1/1 green Hippo creature token.
{W}: Questing Phelddagrif gains protection from black and from red until end of turn. Target opponent gains 2 life.
{U}: Questing Phelddagrif gains flying until end of turn. Target opponent may draw a card.
4 /
4
{2}{U}{U}
Reins of Power
Instant
Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.
{1}{W}
Rest in Peace
Enchantment
When Rest in Peace enters the battlefield, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.
{1}{G}{G}
Runic Armasaur
Creature - Dinosaur
Whenever an opponent activates an ability of a creature or land that isn't a mana ability, you may draw a card.
2 /
5
{1}
Sensei's Divining Top
Artifact
{1}: Look at the top three cards of your library, then put them back in any order.
{T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.
{W}
Silence
Instant
Your opponents can't cast spells this turn.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}
Sphere of Resistance
Artifact
Spells cost {1} more to cast.
{1}{W}
Suture Priest
Creature - Phyrexian Cleric
Whenever another creature enters the battlefield under your control, you may gain 1 life.
Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.
1 /
1
{U}
Swan Song
Instant
Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
{W}
Swords to Plowshares
Instant
Exile target creature. Its controller gains life equal to its power.
{1}{G}
Sylvan Library
Enchantment
At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.
{G}
Utopia Sprawl
Enchantment - Aura
Enchant Forest
As Utopia Sprawl enters the battlefield, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.
{1}{W}
Vizier of Remedies
Creature - Human Cleric
If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead.
2 /
1
{G}
Wild Growth
Enchantment - Aura
Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.
{2}
Winter Orb
Artifact
As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.
--
Wooded Foothills
Land
{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.
{G}
Worldly Tutor
Instant
Search your library for a creature card, reveal it, then shuffle and put the card on top.
{2}{G}
Yisan, the Wanderer Bard
Legendary Creature - Human Rogue Bard
{2}{G}, {T}, Put a verse counter on Yisan, the Wanderer Bard: Search your library for a creature card with mana value equal to the number of verse counters on Yisan, put it onto the battlefield, then shuffle.