Search target opponent's library for an artifact card and put that card onto the battlefield under your control. Then that player shuffles.

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.

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.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

Draw three cards, then put two cards from your hand on top of your library in any order.

Target creature becomes blue until end of turn. Untap that creature.

Draw a card.

Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.

When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.)

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Draw a card.

Counter target spell.

When Dowsing Dagger enters the battlefield, target opponent creates two 0/2 green Plant creature tokens with defender.

Equipped creature gets +2/+1.

Whenever equipped creature deals combat damage to a player, you may transform Dowsing Dagger.

Equip {2}

(Transforms from Dowsing Dagger.)

{T}: Add three mana of any one color.

When you cast this spell, copy it for each time you've cast your commander from the command zone this game. You may choose new targets for the copies.

Create a token that's a copy of target artifact.

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Prowl {3}{U} (You may cast this spell for its prowl cost if you dealt combat damage to a player this turn with a Sphinx or Rogue.)

Flying

When Enigma Thief enters the battlefield, for each opponent, return up to one target nonland permanent that player controls to its owner's hand.

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. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Return target permanent to its owner's hand.

Return target creature to its owner's hand. Gain control of all Auras and Equipment that were attached to it, then attach them to another creature.

Equipped creature has first strike and gets +1/+0 for each instant and sorcery card in your graveyard.

Whenever equipped creature deals combat damage to a player, you may cast an instant or sorcery spell from your hand with mana value less than or equal to that damage without paying its mana cost.

Equip {3}

Hunted Phantasm can't be blocked.

When Hunted Phantasm enters the battlefield, target opponent creates five 1/1 red Goblin creature tokens.

Draw three cards. Discard three cards at the beginning of the next end step.

You choose how each player votes this turn.

Draw a card.

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.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Prowl {3}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)

Search target opponent's library for an instant or sorcery card. You may cast that card without paying its mana cost. Then that player shuffles.

Target creature gains flying until end of turn.

Draw a card.

Whenever you cast a spell, equipped creature gets +2/+2 until end of turn.

Equip {2}

Enchant land

Enchanted land is an Island.

Cycling {2} ({2}, Discard this card: Draw a card.)

This spell costs {1} less to cast if you control an artifact creature.

Return target nonland permanent to its owner's hand.

Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value. (Equipment that's a creature can't equip a creature.)

Whenever equipped creature deals combat damage to a player, you may draw two cards. If you do, discard a card.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Mercurial Spelldancer can't be blocked.

Whenever you cast a noncreature spell, put an oil counter on Mercurial Spelldancer.

Whenever Mercurial Spelldancer deals combat damage to a player, you may remove two oil counters from it. If you do, when you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost.

Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Look at the top three cards of your library. Put one of those cards into your hand, one into your graveyard, and one on the bottom of your library.

When equipped creature deals combat damage to a player, sacrifice Mystery Key. If you do, draw three cards.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Prowl {5}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)

Create X 1/1 black Faerie Rogue creature tokens with flying, where X is the damage dealt to your opponents this turn. If this spell's prowl cost was paid, take an extra turn after this one.

Draw a card.

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.)

This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard.

Ward {8}

Magecraft -- Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn.

Scry 1.

Draw a card.

Look at target player's hand.

Draw a card.

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.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

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.)

The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.)

Draw a card.

Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Draw a card.

Target permanent's controller sacrifices it. If the player does, they reveal cards from the top of their library until they reveal a permanent card that shares a card type with the sacrificed permanent, put that card onto the battlefield, then shuffle.

Splice onto Arcane {2}{U}{U} (As you cast an Arcane 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.)

Equipped creature has first strike and gets +X/+0, where X is the number of instant and sorcery cards in your graveyard.

Equip {2}

Enchant land (Target a land as you cast this. This card enters the battlefield attached to that land.)

Enchanted land is an Island.

Return target nonland permanent to its owner's hand. If that permanent had mana value 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying

Whenever you cast a noncreature spell, put an oil counter on Serum Sovereign.

{U}, Remove an oil counter from Serum Sovereign: Draw a card, then scry 2.

Draw a card. Scry 2.

Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Draw a card.

At the beginning of your upkeep or whenever you cast a blue spell, put a charge counter on Shrine of Piercing Vision.

{T}, Sacrifice Shrine of Piercing Vision: Look at the top X cards of your library, where X is the number of charge counters on Shrine of Piercing Vision. Put one of those cards into your hand and the rest on the bottom of your library in any order.

Draw two cards, then discard a card.

If you've cast a spell named Peer Through Depths and a spell named Reach Through Mists this turn, you may search your library for a card named The Unspeakable, put it onto the battlefield, then shuffle.

Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.

Enchant land

When Spreading Seas enters the battlefield, draw a card.

Enchanted land is an Island.

Create a token that's a copy of target artifact or creature.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Target player shuffles up to four target cards from their graveyard into their library.

Target creature gets -1/-0 until end of turn. It gets -4/-0 until end of turn instead if you control an outlaw. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

Draw a card.

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.

Flying

Tempest Djinn gets +1/+0 for each basic Island you control.

The first activated ability of an artifact you activate each turn costs {2} less to activate.

+1: Draw two cards. Then discard two cards unless you discard an artifact card.

-2: Target artifact becomes an artifact creature. If it isn't a Vehicle, it has base power and toughness 4/4.

-6: You get an emblem with "Whenever an artifact you control becomes tapped, draw a card."

+1: Draw a card.

0: Until your next turn, target artifact you control becomes a 5/5 creature in addition to its other types.

-7: Put any number of cards from your hand onto the battlefield face down. They're 5/5 artifact creatures.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Thada Adel, Acquisitor deals combat damage to a player, search that player's library for an artifact card and exile it. Then that player shuffles. Until end of turn, you may play that card.

Flying, trample

Whenever The Unspeakable deals combat damage to a player, you may return target Arcane card from your graveyard to your hand.

Prowl {U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)

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.

Kicker {X}. X can't be 0. (You may pay an additional {X} as you cast this spell.)

Flying

When Thieving Skydiver enters the battlefield, if it was kicked, gain control of target artifact with mana value X or less. If that artifact is an Equipment, attach it to Thieving Skydiver.

Switch target creature's power and toughness until end of turn.

Draw a card.