Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.
{1}{W}
Adamant Will
Instant
Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
{4}{W}{W}
Akroma's Vengeance
Sorcery
Destroy all artifacts, creatures, and enchantments.
Cycling {3} ({3}, Discard this card: Draw a card.)
{1}{U}
Anticipate
Instant
Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
{U}
Aquitect's Will
Tribal Sorcery - Merfolk
Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.
{2}{U}
Arrester's Admonition
Instant
Return target creature to its owner's hand.
Addendum -- If you cast this spell during your main phase, draw a card.
--
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}.
{3}
Azorius Cluestone
Artifact
{T}: Add {W} or {U}.
{W}{U}, {T}, Sacrifice Azorius Cluestone: Draw a card.
--
Azorius Guildgate
Land - Gate
Azorius Guildgate enters the battlefield tapped.
{T}: Add {W} or {U}.
{3}
Azorius Keyrune
Artifact
{T}: Add {W} or {U}.
{W}{U}: Azorius Keyrune becomes a 2/2 white and blue Bird artifact creature with flying until end of turn.
{3}
Azorius Locket
Artifact
{T}: Add {W} or {U}.
{W/U}{W/U}{W/U}{W/U}, {T}, Sacrifice Azorius Locket: Draw two cards.
{1}{U}
Blink of an Eye
Instant
Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.
{1}{W}
Bounty Agent
Creature - Human Soldier
Vigilance
{T}, Sacrifice Bounty Agent: Destroy target legendary permanent that's an artifact, creature, or enchantment.
2 /
2
{2}{U}
Calculated Dismissal
Instant
Counter target spell unless its controller pays {3}.
Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
{1}{U}
Callous Dismissal
Sorcery
Return target nonland permanent to its owner's hand.
Amass 1. (Put a +1/+1 counter on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)
{3}{U}
Chemister's Insight
Instant
Draw two cards.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)
{2}{U}
Circular Logic
Instant
Counter target spell unless its controller pays {1} for each card in your graveyard.
Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
{2}{U}
Clear the Mind
Sorcery
Target player shuffles their graveyard into their library.
Draw a card.
--
Cloudcrest Lake
Land
{T}: Add {C}.
{T}: Add {W} or {U}. Cloudcrest Lake doesn't untap during your next untap step.
{3}{U}{U}
Confirm Suspicions
Instant
Counter target spell.
Investigate three times. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")
{1}{U}
Confound
Instant
Counter target spell that targets a creature.
Draw a card.
{2}{U}
Countervailing Winds
Instant
Counter target spell unless its controller pays {1} for each card in your graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)
{2}{U}
Crashing Tide
Sorcery
This spell has flash as long as you control a Merfolk.
Return target creature to its owner's hand.
Draw a card.
{2}{U}
Decoy Gambit
Instant
For each opponent, choose up to one target creature that player controls, then return that creature to its owner's hand unless its controller has you draw a card.
{1}{W/U}{ // }{2}{W}{U}
Depose // Deploy
Instant // Instant
Tap target creature.
Draw a card.
Create two 1/1 colorless Thopter artifact creature tokens with flying, then you gain 1 life for each creature you control.
{1}{W}
Disenchant
Instant
Destroy target artifact or enchantment.
{1}{U}{U}
Dissipate
Instant
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
{1}{U}{U}
Dissolve
Instant
Counter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{1}{W}{U}
Dovin's Acuity
Enchantment
When Dovin's Acuity enters the battlefield, you gain 2 life and draw a card.
Whenever you cast an instant spell during your main phase, you may return Dovin's Acuity to its owner's hand.
{2}{U}{U}
Drawn from Dreams
Sorcery
Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in a random order.
{1}{U}
Dreamscape Artist
Creature - Human Spellshaper
{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.
1 /
1
--
Drifting Meadow
Land
Drifting Meadow enters the battlefield tapped.
{T}: Add {W}.
Cycling {2} ({2}, Discard this card: Draw a card.)
{1}{U}
Everdream
Instant
Draw a card.
Splice onto instant or sorcery {2}{U} (As you cast an instant or sorcery spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
{1}{U}
Expel from Orazca
Instant
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
Return target nonland permanent to its owner's hand. If you have the city's blessing, you may put that permanent on top of its owner's library instead.
{2}{U}{U}
Failed Inspection
Instant
Counter target spell. Draw a card, then discard a card.
{1}{W}{U}
Fieldmist Borderpost
Artifact
You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
Fieldmist Borderpost enters the battlefield tapped.
{T}: Add {W} or {U}.
{3}{W}{W}
Fortunate Few
Sorcery
Choose a nonland permanent you don't control, then each other player chooses a nonland permanent they don't control that hasn't been chosen this way. Destroy all other nonland permanents.
{1}{U}
Glimpse of Freedom
Instant
Draw a card.
Escape--{2}{U}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
{W}
Gods Willing
Instant
Target creature you control gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)
Scry 1.
{1}{U}
Into the Roil
Instant
Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Return target nonland permanent to its owner's hand. If this spell was kicked, draw a card.
--
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}.)
--
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}{U}
Keep Safe
Instant
Counter target spell that targets a permanent you control.
Draw a card.
--
Lonely Sandbar
Land
Lonely Sandbar enters the battlefield tapped.
{T}: Add {U}.
Cycling {U} ({U}, Discard this card: Draw a card.)
{3}
Mana Geode
Artifact
When Mana Geode enters the battlefield, scry 1.
{T}: Add one mana of any color.
{3}
Manalith
Artifact
{T}: Add one mana of any color.
--
Meandering River
Land
Meandering River enters the battlefield tapped.
{T}: Add {W} or {U}.
{1}{U}
Negate
Instant
Counter target noncreature spell.
{3}{W}{U}
Noyan Dar, Roil Shaper
Legendary Creature - Merfolk Ally
Whenever you cast an instant or sorcery spell, you may put three +1/+1 counters on target land you control. If you do, that land becomes a 0/0 Elemental creature with haste that's still a land.
4 /
4
{U}
Opt
Instant
Scry 1.
Draw a card.
{1}{U}
Peer Through Depths
Instant - Arcane
Look at the top five cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
{2}
Prismatic Lens
Artifact
{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{1}{U}
Radical Idea
Instant
Draw a card.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)
{2}{U}
Rakshasa's Disdain
Instant
Counter target spell unless its controller pays {1} for each card in your graveyard.
{U}
Reach Through Mists
Instant - Arcane
Draw a card.
--
Remote Isle
Land
Remote Isle enters the battlefield tapped.
{T}: Add {U}.
Cycling {2} ({2}, Discard this card: Draw a card.)
{1}
Renegade Map
Artifact
Renegade Map enters the battlefield tapped.
{T}, Sacrifice Renegade Map: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{1}{W}
Revoke Existence
Sorcery
Exile target artifact or enchantment.
{1}{U}{U}
Scatter to the Winds
Instant
Counter target spell.
Awaken 3--{4}{U}{U} (If you cast this spell for {4}{U}{U}, also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)
--
Secluded Steppe
Land
Secluded Steppe enters the battlefield tapped.
{T}: Add {W}.
Cycling {W} ({W}, Discard this card: Draw a card.)
{1}{W}
Shelter
Instant
Target creature you control gains protection from the color of your choice until end of turn.
Draw a card.
{1}{U}
Shimmer of Possibility
Sorcery
Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.
{3}{U}
Sight Beyond Sight
Sorcery
Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
{2}{U}
Supreme Will
Instant
Choose one --
• Counter target spell unless its controller pays {3}.
• Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
{X}{U}
Syncopate
Instant
Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
{1}{U}
Taigam's Scheming
Sorcery
Surveil 5. (Look at the top five cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
{1}{U}
Telling Time
Instant
Look at the top three cards of your library. Put one of those cards into your hand, one on top of your library, and one on the bottom of your library.
--
Thalakos Lowlands
Land
{T}: Add {C}.
{T}: Add {W} or {U}. Thalakos Lowlands doesn't untap during your next untap step.
{1}{U}
Think Twice
Instant
Draw a card.
Flashback {2}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{2}{W}{W}{U}
Time Wipe
Sorcery
Return a creature you control to its owner's hand, then destroy all creatures.
--
Tranquil Cove
Land
Tranquil Cove enters the battlefield tapped.
When Tranquil Cove enters the battlefield, you gain 1 life.
{T}: Add {W} or {U}.
{1}
Traveler's Amulet
Artifact
{1}, Sacrifice Traveler's Amulet: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{U}
Turn Aside
Instant
Counter target spell that targets a permanent you control.
{2}{W}{U}
Vanish into Memory
Instant
Exile target creature. You draw cards equal to that creature's power. At the beginning of your next upkeep, return that card to the battlefield under its owner's control. If you do, discard cards equal to that creature's toughness.
{1}{U}
Worldly Counsel
Instant
Domain -- Look at the top X cards of your library, where X is the number of basic land types among lands you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.