When Agent of Treachery enters the battlefield, gain control of target permanent.

At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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.

{T}: Add one mana of any color in your commander's color identity.

Target permanent becomes an artifact in addition to its other types until end of turn.

Draw a card.

Target creature can't be blocked this turn.

Flashback {U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Change the text of target spell or permanent by replacing all instances of one creature type with another. The new creature type can't be Wall. (This effect lasts indefinitely.)

{T}: Add {C}.

{1}: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land.

{1}, {T}: Target Blinkmoth creature gets +1/+1 until end of turn.

Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.

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

Draw a card.

Target creature gets -4/-0 until end of turn. If you control a Wizard, draw a card.

Target creature gains flying until end of turn.

Draw a card.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)

Choose a counter on target permanent or suspended card. Remove that counter from that permanent or card or put another of those counters on it.

Cloudpost enters the battlefield tapped.

{T}: Add {C} for each Locus on the battlefield.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice Commander's Sphere: Draw a card.

When Coveted Jewel enters the battlefield, draw three cards.

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

Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of Coveted Jewel. Untap it.

Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

Draw a card.

Target creature gains flying until end of turn.

Flashback {U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying

Whenever you cast an instant or sorcery spell, create a 1/1 blue Human Wizard creature token. Then if you control three or more Wizards, transform Docent of Perfection.

Flying

Wizards you control get +2/+1 and have flying.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Human Wizard creature token.

Flash

Flying

When Draining Whelk enters the battlefield, counter target spell. Put X +1/+1 counters on Draining Whelk, where X is that spell's mana value.

Choose one --

• Tap target permanent.

• Untap target permanent.

Entwine {1} (Choose both if you pay the entwine cost.)

Exile target creature you control, then return that card to the battlefield under its owner's control. If it's a Spirit, put a +1/+1 counter on it.

Faerie Conclave enters the battlefield tapped.

{T}: Add {U}.

{1}{U}: Faerie Conclave becomes a 2/1 blue Faerie creature with flying until end of turn. It's still a land.

Target creature gets -1/-0 until end of turn.

Draw a card.

Return target nonland permanent to its owner's hand. If you controlled that permanent, draw a card.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Tap target permanent.

Change the text of target spell or permanent by replacing all instances of one color word with another.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

When Glimmerpost enters the battlefield, you gain 1 life for each Locus on the battlefield.

{T}: Add {C}.

If you control two or more other lands, Hall of Storm Giants enters the battlefield tapped.

{T}: Add {U}.

{5}{U}: Until end of turn, Hall of Storm Giants becomes a 7/7 blue Giant creature with ward {3}. It's still a land. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)

You may tap or untap target permanent, then you may tap or untap another target permanent.

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.)

({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}.)

Target creature gains flying until end of turn.

Draw a card.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)

Equip {0}

Change the text of target spell or permanent by replacing all instances of one basic land type with another. (For example, you may change "swampwalk" to "plainswalk." This effect lasts indefinitely.)

Protection from red

Elemental creatures you control get +1/+1.

When Master of Waves enters the battlefield, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

{T}: Add {U}.

{2}{U}: Put an hour counter on Midnight Clock.

At the beginning of each upkeep, put an hour counter on Midnight Clock.

When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Dominate Monster -- When Mind Flayer enters the battlefield, gain control of target creature for as long as you control Mind Flayer.

Buyback {2}{U} (You may pay an additional {2}{U} as you cast this spell. If you do, put this card into your hand as it resolves.)

Tap target artifact, creature, or land.

Target spell or permanent becomes colorless.

({T}: Add {U}.)

Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.

When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.

Changeling

Whenever you cast an instant or sorcery spell, if it targets one or more other permanents you control, create a token that's a copy of one of those permanents.

When a spell or ability an opponent controls causes you to discard this card, create a token that's a copy of target permanent.

Flash

Flying

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Overcharged Amalgam exploits a creature, counter target spell, activated ability, or triggered ability.

Flying

When Peregrine Drake enters the battlefield, untap up to five lands.

{T}: Add {C} for each artifact you control named Powerstone Shard.

Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)

Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."

Heroic -- Whenever you cast a spell that targets Sage of Hours, put a +1/+1 counter on it.

Remove all +1/+1 counters from Sage of Hours: For each five counters removed this way, take an extra turn after this one.

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

Draw a card.

Sky Diamond enters the battlefield tapped.

{T}: Add {U}.

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Devoid (This card has no color.)

Target creature can't be blocked this turn.

Draw a card.

{T}: Add {C}{C}.

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When Solemn Simulacrum dies, you may draw a card.

Flying

When Sower of Temptation enters the battlefield, gain control of target creature for as long as Sower of Temptation remains on the battlefield.

Flying

Whenever Stormchaser Drake becomes the target of a spell you control, draw a card.

Target creature gets -4/-0 until end of turn. If you control a Wizard, draw a card.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it.

Choose one --

• Target nonsnow permanent becomes snow until end of turn.

• Target snow permanent isn't snow until end of turn.

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

Defender

Thing in the Ice enters the battlefield with four ice counters on it.

Whenever you cast an instant or sorcery spell, remove an ice counter from Thing in the Ice. Then if it has no ice counters on it, transform it.

When this creature transforms into Awoken Horror, return all non-Horror creatures to their owners' hands.

Target spell or permanent becomes blue. (Mana symbols on that permanent remain unchanged.)

Tolaria West enters the battlefield tapped.

{T}: Add {U}.

Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with mana value 0, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Flash

When Torrential Gearhulk enters the battlefield, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

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.)

You may tap or untap target artifact, creature, or land.

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

Draw a card.

{T}: Add {C}.

{2}, {T}: Target legendary creature becomes a God in addition to its other types. Put a +1/+1 counter on it.

{4}, {T}, Sacrifice Tyrite Sanctum: Put an indestructible counter on target God.

Target creature gains flying until end of turn. If you control a white permanent, return View from Above to its owner's hand.

Flash

When Voracious Greatshark enters the battlefield, counter target artifact or creature spell.

Choose one --

• Fight the Current -- Return target nonland permanent to its owner's hand.

• Find a Crossing -- Target creature gets +1/+0 until end of turn and can't be blocked this turn.

Choose one --

• Distract the Guard -- Tap target creature.

• Hide -- Target creature you control gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)