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}{U}{U}
Aetherling
Creature - Shapeshifter
{U}: Exile Aetherling. Return it to the battlefield under its owner's control at the beginning of the next end step.
{U}: Aetherling can't be blocked this turn.
{1}: Aetherling gets +1/-1 until end of turn.
{1}: Aetherling gets -1/+1 until end of turn.
4 /
5
{3}{U}{U}{U}
Arcanis the Omnipotent
Legendary Creature - Wizard
{T}: Draw three cards.
{2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.
3 /
4
{2}{U}{U}
Archivist
Creature - Human Wizard
{T}: Draw a card.
1 /
1
{3}{G}
Argothian Elder
Creature - Elf Druid
{T}: Untap two target lands.
2 /
2
{3}{U}{U}
Beguiler of Wills
Creature - Human Wizard
{T}: Gain control of target creature with power less than or equal to the number of creatures you control.
1 /
1
{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
{2}{G}{G}
Bloodspore Thrinax
Creature - Lizard
Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)
Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.
2 /
2
{G}{U}
Combine Guildmage
Creature - Merfolk Wizard
{1}{G}, {T}: This turn, each creature you control enters the battlefield with an additional +1/+1 counter on it.
{1}{U}, {T}: Move a +1/+1 counter from target creature you control onto another target creature you control.
2 /
2
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{U}{U}
Counterspell
Instant
Counter target spell.
{2}{G}
Elemental Bond
Enchantment
Whenever a creature with power 3 or greater enters the battlefield under your control, draw a card.
{U}
Enclave Cryptologist
Creature - Merfolk Wizard
Level up {1}{U} ({1}{U}: Put a level counter on this. Level up only as a sorcery.)
LEVEL 1-2
0/1
{T}: Draw a card, then discard a card.
LEVEL 3+
0/1
{T}: Draw a card.
0 /
1
{2}{G}{G}{U}{U}
Experiment Kraj
Legendary Creature - Ooze Mutant
Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it.
{T}: Put a +1/+1 counter on target creature.
4 /
6
{3}{U}
Fact or Fiction
Instant
Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.
{4}{U}
Faerie Formation
Creature - Faerie
Flying
{3}{U}: Create a 1/1 blue Faerie creature token with flying. Draw a card.
5 /
4
{3}{U}
Fatestitcher
Creature - Zombie Wizard
{T}: You may tap or untap another target permanent.
Unearth {U} ({U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
1 /
2
{3}{U}
Fledgling Mawcor
Creature - Beast
Flying
{T}: Fledgling Mawcor deals 1 damage to any target.
Morph {U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
2 /
2
--
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}.)
{3}{G}
Forgotten Ancient
Creature - Elemental
Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient.
At the beginning of your upkeep, you may move any number of +1/+1 counters from Forgotten Ancient onto other creatures.
0 /
3
{2}{U}
Freed from the Real
Enchantment - Aura
Enchant creature
{U}: Tap enchanted creature.
{U}: Untap enchanted creature.
{G}{G}{U}{U}
Frilled Mystic
Creature - Elf Lizard Wizard
Flash
When Frilled Mystic enters the battlefield, you may counter target spell.
3 /
2
{1}{G/U}{G/U}
Gilder Bairn
Creature - Ouphe
{2}{G/U}, {Q}: Double the number of each kind of counter on target permanent. ({Q} is the untap symbol.)
1 /
3
--
Guildmages' Forum
Land
{T}: Add {C}.
{1}, {T}: Add one mana of any color. If that mana is spent on a multicolored creature spell, that creature enters the battlefield with an additional +1/+1 counter on it.
{1}{G}{U}
Gyre Engineer
Creature - Vedalken Wizard
{T}: Add {G}{U}.
1 /
1
{1}{G}
Gyre Sage
Creature - Elf Druid
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.)
{T}: Add {G} for each +1/+1 counter on Gyre Sage.
1 /
2
{4}{U}
Helium Squirter
Creature - Beast Mutant
Graft 3 (This creature enters the battlefield with three +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)
{1}: Target creature with a +1/+1 counter on it gains flying until end of turn.
0 /
0
{3}{U}
Herald of Secret Streams
Creature - Merfolk Warrior
Creatures you control with +1/+1 counters on them can't be blocked.
2 /
3
--
Hinterland Harbor
Land
Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.
{2}{U}
Horseshoe Crab
Creature - Crab
{U}: Untap Horseshoe Crab.
1 /
3
{2}
Illusionist's Bracers
Artifact - Equipment
Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy.
Equip {3}
{1}{G}
Incubation Druid
Creature - Elf Druid
{T}: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead.
{3}{G}{G}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.)
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}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{3}{G}
Ivy Lane Denizen
Creature - Elf Warrior
Whenever another green creature enters the battlefield under your control, put a +1/+1 counter on target creature.
2 /
3
{3}{G}
Karametra's Acolyte
Creature - Human Druid
{T}: Add an amount of {G} equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)
1 /
4
{G}{U}
Kiora's Follower
Creature - Merfolk
{T}: Untap another target permanent.
2 /
2
{3}{U}
Knacksaw Clique
Creature - Faerie Rogue
Flying
{1}{U}, {Q}: Target opponent exiles the top card of their library. Until end of turn, you may play that card. ({Q} is the untap symbol.)
1 /
4
{2}{G}
Krosan Grip
Instant
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Destroy target artifact or enchantment.
{2}{G}
Krosan Restorer
Creature - Human Druid
{T}: Untap target land.
Threshold -- {T}: Untap up to three target lands. Activate only if seven or more cards are in your graveyard.
1 /
2
{2}{U}
Leech Bonder
Creature - Merfolk Soldier
Leech Bonder enters the battlefield with two -1/-1 counters on it.
{U}, {Q}: Move a counter from target creature onto a second target creature. ({Q} is the untap symbol.)
3 /
3
--
Llanowar Reborn
Land
Llanowar Reborn enters the battlefield tapped.
{T}: Add {G}.
Graft 1 (This land enters the battlefield with a +1/+1 counter on it. Whenever a creature enters the battlefield, you may move a +1/+1 counter from this land onto it.)
{G}{G}{G}
Llanowar Tribe
Creature - Elf Druid
{T}: Add {G}{G}{G}.
3 /
3
--
Lotus Field
Land
Hexproof
Lotus Field enters the battlefield tapped.
When Lotus Field enters the battlefield, sacrifice two lands.
{T}: Add three mana of any one color.
{2}{G}{U}
Master Biomancer
Creature - Elf Wizard
Each other creature you control enters the battlefield with a number of additional +1/+1 counters on it equal to Master Biomancer's power and as a Mutant in addition to its other types.
2 /
4
{1}{U}
Merfolk Looter
Creature - Merfolk Rogue
{T}: Draw a card, then discard a card.
1 /
1
{3}{U}{U}
Morphling
Creature - Shapeshifter
{U}: Untap Morphling.
{U}: Morphling gains flying until end of turn.
{U}: Morphling gains shroud until end of turn. (It can't be the target of spells or abilities.)
{1}: Morphling gets +1/-1 until end of turn.
{1}: Morphling gets -1/+1 until end of turn.
3 /
3
{1}{G}
Naturalize
Instant
Destroy target artifact or enchantment.
{4}
Nevinyrral's Disk
Artifact
Nevinyrral's Disk enters the battlefield tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.
{2}{G}
New Horizons
Enchantment - Aura
Enchant land
When New Horizons enters the battlefield, put a +1/+1 counter on target creature you control.
Enchanted land has "{T}: Add two mana of any one color."
{4}{G}
Nissa's Judgment
Sorcery
Support 2. (Put a +1/+1 counter on each of up to two target creatures.)
Choose up to one target creature an opponent controls. Each creature you control with a +1/+1 counter on it deals damage equal to its power to that creature.
--
Novijen, Heart of Progress
Land
{T}: Add {C}.
{G}{U}, {T}: Put a +1/+1 counter on each creature that entered the battlefield this turn.
{1}{G}{G}{U}
Omnibian
Creature - Frog
{T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn.
3 /
3
{U}
Opt
Instant
Scry 1.
Draw a card.
--
Oran-Rief, the Vastwood
Land
Oran-Rief, the Vastwood enters the battlefield tapped.
{T}: Add {G}.
{T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn.
{1}{U}{U}
Pemmin's Aura
Enchantment - Aura
Enchant creature
{U}: Untap enchanted creature.
{U}: Enchanted creature gains flying until end of turn.
{U}: Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.)
{1}: Enchanted creature gets +1/-1 or -1/+1 until end of turn.
{2}
Pili-Pala
Artifact Creature - Scarecrow
Flying
{2}, {Q}: Add one mana of any color. ({Q} is the untap symbol.)
1 /
1
{G}{G}{U}{U}
Plasm Capture
Instant
Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.
{1}{G}{U}
Plaxcaster Frogling
Creature - Frog Mutant
Graft 3 (This creature enters the battlefield with three +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)
{2}: Target creature with a +1/+1 counter on it gains shroud until end of turn. (It can't be the target of spells or abilities.)
0 /
0
{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.
{2}
Prismatic Lens
Artifact
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{3}{U}{U}
Quicksilver Elemental
Creature - Elemental
{U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, use this creature's name instead.)
You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities.
3 /
4
{U}
Rapid Hybridization
Instant
Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.
--
Reliquary Tower
Land
You have no maximum hand size.
{T}: Add {C}.
{3}{G}{G}
Shared Summons
Instant
Search your library for up to two creature cards with different names, reveal them, put them into your hand, then shuffle.
--
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}.
{3}{G}
Simic Ragworm
Creature - Worm
{U}: Untap Simic Ragworm.
3 /
3
{2}{G}{U}
Skyrider Patrol
Creature - Elf Scout
Flying
At the beginning of combat on your turn, you may pay {G}{U}. When you do, put a +1/+1 counter on another target creature you control, and that creature gains flying until end of turn.
2 /
3
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{2}
Talisman of Curiosity
Artifact
{T}: Add {C}.
{T}: Add {G} or {U}. Talisman of Curiosity deals 1 damage to you.
--
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 the False God
Land
{T}: Add {C}{C}. Activate only if you control five or more lands.
{2}{G}{G}
Temur Sabertooth
Creature - Cat
{1}{G}: You may return another creature you control to its owner's hand. If you do, Temur Sabertooth gains indestructible until end of turn.
4 /
3
{7}{G}{G}
The Great Henge
Legendary Artifact
This spell costs {X} less to cast, where X is the greatest power among creatures you control.
{T}: Add {G}{G}. You gain 2 life.
Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.
{3}{G}{G}
Thornling
Creature - Elemental Shapeshifter
{G}: Thornling gains haste until end of turn.
{G}: Thornling gains trample until end of turn.
{G}: Thornling gains indestructible until end of turn.
{1}: Thornling gets +1/-1 until end of turn.
{1}: Thornling gets -1/+1 until end of turn.
4 /
4
{G}
Ulvenwald Tracker
Creature - Human Shaman
{1}{G}, {T}: Target creature you control fights another target creature.
1 /
1
{2}{U}
Vigean Graftmage
Creature - Vedalken Wizard Mutant
Graft 2 (This creature enters the battlefield with two +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)
{1}{U}: Untap target creature with a +1/+1 counter on it.
0 /
0
{1}{G}{U}
Vorel of the Hull Clade
Legendary Creature - Human Merfolk
{G}{U}, {T}: Double the number of each kind of counter on target artifact, creature, or land.
1 /
4
--
Yavimaya Coast
Land
{T}: Add {C}.
{T}: Add {G} or {U}. Yavimaya Coast deals 1 damage to you.
{G}{U}
Zameck Guildmage
Creature - Elf Wizard
{G}{U}: This turn, each creature you control enters the battlefield with an additional +1/+1 counter on it.
{G}{U}, Remove a +1/+1 counter from a creature you control: Draw a card.