An Offer You Can't RefuseCounter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")
An Offer You Can't Refuse
Arcane DenialCounter 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.
Arcane Denial
NegateCounter target noncreature spell.
Negate
Swan SongCounter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
Swan Song
Fierce GuardianshipIf you control a commander, you may cast this spell without paying its mana cost.
Counter target noncreature spell.
Fierce Guardianship
Mana DrainCounter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
Mana Drain
Sink into Stupor // Soporific SpringsReturn target spell or nonland permanent an opponent controls to its owner's hand. // As this land enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {U}.
Sink into Stupor // Soporific Springs
Force of WillYou may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.
Force of Will
Dovin's VetoThis spell can't be countered.
Counter target noncreature spell.
Dovin's Veto
Force of NegationIf it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost.
Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
Force of Negation
Hullbreaker HorrorFlash
This spell can't be countered.
Whenever you cast a spell, choose up to one —
• Return target spell you don't control to its owner's hand.
• Return target nonland permanent to its owner's hand.
Hullbreaker Horror
FlusterstormCounter 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.)
Flusterstorm
Pact of NegationCounter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
Pact of Negation
Red Elemental BlastChoose one —
• Counter target blue spell.
• Destroy target blue permanent.
Red Elemental Blast
Mental Misstep({U/P} can be paid with either {U} or 2 life.)
Counter target spell with mana value 1.
Mental Misstep
PyroblastChoose one —
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.
Pyroblast
Mindbreak TrapIf an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost.
Exile any number of target spells.
Mindbreak Trap
Tibalt's TrickeryCounter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.
Tibalt's Trickery
ReprieveReturn target spell to its owner's hand.
Draw a card.
Reprieve
Muddle the MixtureCounter 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.)
Muddle the Mixture
Narset's ReversalCopy target instant or sorcery spell, then return it to its owner's hand. You may choose new targets for the copy.
Narset's Reversal
Boromir, Warden of the TowerVigilance
Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.
Sacrifice Boromir: Creatures you control gain indestructible until end of turn. The Ring tempts you.
Boromir, Warden of the Tower
Spell PierceCounter target noncreature spell unless its controller pays {2}.
Spell Pierce
DispelCounter target instant spell.
Dispel
RewindCounter target spell. Untap up to four lands.
Rewind
Strix SerenadeCounter target artifact, creature, or planeswalker spell. Its controller creates a 2/2 blue Bird creature token with flying.
Strix Serenade
UnwindCounter target noncreature spell. Untap up to three lands.
Unwind
Three Steps AheadSpree (Choose one or more additional costs.)
+ {1}{U} — Counter target spell.
+ {3} — Create a token that's a copy of target artifact or creature you control.
+ {2} — Draw two cards, then discard a card.
Three Steps Ahead
Siren StormtamerFlying
{U}, Sacrifice this creature: Counter target spell or ability that targets you or a creature you control.
Siren Stormtamer
Vexing BaubleWhenever a player casts a spell, if no mana was spent to cast it, counter that spell.
{1}, {T}, Sacrifice this artifact: Draw a card.
Vexing Bauble
Flare of DenialYou may sacrifice a nontoken blue creature rather than pay this spell's mana cost.
Counter target spell.
Flare of Denial
Drown in the LochChoose one —
• Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard.
• Destroy target creature with mana value less than or equal to the number of cards in its controller's graveyard.
Drown in the Loch
Mystic ConfluenceChoose three. You may choose the same mode more than once.
• Counter target spell unless its controller pays {3}.
• Return target creature to its owner's hand.
• Draw a card.
Mystic Confluence
Long River's PullGift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Counter target creature spell. If the gift was promised, instead counter target spell.
Long River's Pull
Izzet CharmChoose one —
• Counter target noncreature spell unless its controller pays {2}.
• Izzet Charm deals 2 damage to target creature.
• Draw two cards, then discard two cards.
Izzet Charm
Stubborn DenialCounter target noncreature spell unless its controller pays {1}.
Ferocious — If you control a creature with power 4 or greater, counter that spell instead.
Stubborn Denial
Rebuff the WickedCounter target spell that targets a permanent you control.
Kozilek, the Great DistortionWhen you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference.
Menace
Discard a card with mana value X: Counter target spell with mana value X.
Kozilek, the Great Distortion
Cryptic CommandChoose two —
• Counter target spell.
• Return target permanent to its owner's hand.
• Tap all creatures your opponents control.
• Draw a card.
Cryptic Command
Glen Elendra ArchmageFlying
{U}, Sacrifice this creature: Counter target noncreature spell.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
Glen Elendra Archmage
Sublime EpiphanyChoose one or more —
• Counter target spell.
• Counter target activated or triggered ability.
• Return target nonland permanent to its owner's hand.
• Create a token that's a copy of target creature you control.
• Target player draws a card.
Sublime Epiphany
Jin-Gitaxias, Progress TyrantWhenever you cast an artifact, instant, or sorcery spell, copy that spell. You may choose new targets for the copy. This ability triggers only once each turn. (A copy of a permanent spell becomes a token.)
Whenever an opponent casts an artifact, instant, or sorcery spell, counter that spell. This ability triggers only once each turn.
Jin-Gitaxias, Progress Tyrant
Archmage's CharmChoose one —
• Counter target spell.
• Target player draws two cards.
• Gain control of target nonland permanent with mana value 1 or less.
Archmage's Charm
Mana LeakCounter target spell unless its controller pays {3}.
Mana Leak
DisallowCounter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)
Disallow
RefuteCounter target spell. Draw a card, then discard a card.
Refute
Aven InterrupterFlash
Flying
When this creature enters, exile target spell. It becomes plotted. (Its owner may cast it as a sorcery on a later turn without paying its mana cost.)
Spells your opponents cast from graveyards or from exile cost {2} more to cast.
Aven Interrupter
Venser, Shaper SavantFlash (You may cast this spell any time you could cast an instant.)
When Venser enters, return target spell or permanent to its owner's hand.
Venser, Shaper Savant
Warping Wail({C} represents colorless mana.)
Choose one —
• Exile target creature with power or toughness 1 or less.
• Counter target sorcery spell.
• Create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add {C}."
Warping Wail
CancelCounter target spell.
Cancel
Dawn CharmChoose one —
• Prevent all combat damage that would be dealt this turn.
• Regenerate target creature.
• Counter target spell that targets you.
Dawn Charm
Mana TitheCounter target spell unless its controller pays {1}.
Mana Tithe
DelayCounter target spell. If the spell is countered this way, exile it with three time counters on it instead of putting it into its owner's graveyard. If it doesn't have suspend, it gains suspend. (At the beginning of its owner's upkeep, they remove a time counter. When the last is removed, they may play it without paying its mana cost. If it's a creature, it has haste.)
Delay
Invert PolarityChoose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell.
Invert Polarity
Disdainful StrokeCounter target spell with mana value 4 or greater.
Disdainful Stroke
Not of This WorldCounter target spell or ability that targets a permanent you control.
This spell costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.
Not of This World
Jwari Disruption // Jwari RuinsCounter target spell unless its controller pays {1}. // This land enters tapped.
{T}: Add {U}.
Jwari Disruption // Jwari Ruins
Essence ScatterCounter target creature spell.
Essence Scatter
MiscastCounter target instant or sorcery spell unless its controller pays {3}.
Miscast
Tishana's TidebinderFlash
When this creature enters, counter up to one target activated or triggered ability. If an ability of an artifact, creature, or planeswalker is countered this way, that permanent loses all abilities for as long as this creature remains on the battlefield. (Mana abilities can't be targeted.)
Tishana's Tidebinder
Sundial of the Infinite{1}, {T}: End the turn. Activate only during your turn. (Exile all spells and abilities from the stack. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)
Sundial of the Infinite
Repulsive MutationPut X +1/+1 counters on target creature you control. Then counter up to one target spell unless its controller pays mana equal to the greatest power among creatures you control.
Repulsive Mutation
Wash AwayCleave {1}{U}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Counter target spell [that wasn't cast from its owner's hand].
Wash Away
Spider-SenseWeb-slinging {U} (You may cast this spell for {U} if you also return a tapped creature you control to its owner's hand.)
Counter target instant spell, sorcery spell, or triggered ability.
Spider-Sense
DazeYou may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays {1}.
Daze
Saw It ComingCounter target spell.
Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Saw It Coming
Render SilentCounter target spell. Its controller can't cast spells this turn.
Render Silent
Lavinia, Azorius RenegadeEach opponent can't cast noncreature spells with mana value greater than the number of lands that player controls.
Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.
Lavinia, Azorius Renegade
Spell SwindleCounter target spell. Create X Treasure tokens, where X is that spell's mana value. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")
Spell Swindle
Memory LapseCounter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.
Memory Lapse
Decisive DenialChoose one —
• Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)
• Counter target noncreature spell unless its controller pays {3}.
Decisive Denial
Commit // MemoryPut target spell or nonland permanent into its owner's library second from the top. // Aftermath (Cast this spell only from your graveyard. Then exile it.)
Each player shuffles their hand and graveyard into their library, then draws seven cards.
Commit // Memory
CounterbalanceWhenever 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.
Counterbalance
Ertai ResurrectedFlash
When Ertai Resurrected enters, choose up to one —
• Counter target spell, activated ability, or triggered ability. Its controller draws a card.
• Destroy another target creature or planeswalker. Its controller draws a card.
Ertai Resurrected
Didn't Say PleaseCounter target spell. Its controller mills three cards.
Didn't Say Please
CountersquallCounter target noncreature spell. Its controller loses 2 life.
Countersquall
Frontline MedicBattalion — Whenever this creature and at least two other creatures attack, creatures you control gain indestructible until end of turn.
Sacrifice this creature: Counter target spell with {X} in its mana cost unless its controller pays {3}.
Frontline Medic
Spellstutter SpriteFlash
Flying
When this creature enters, counter target spell with mana value X or less, where X is the number of Faeries you control.
Spellstutter Sprite
Aang, Swift Savior // Aang and La, Ocean's FuryFlash
Flying
When Aang enters, airbend up to one other target creature or spell. (Exile it. While it's exiled, its owner may cast it for {2} rather than its mana cost.)
Waterbend {8}: Transform Aang. // Reach, trample
Whenever Aang and La attack, put a +1/+1 counter on each tapped creature you control.
Aang, Swift Savior // Aang and La, Ocean's Fury
AbsorbCounter target spell. You gain 3 life.
Absorb
Access DeniedCounter target spell. Create X 1/1 colorless Thopter artifact creature tokens with flying, where X is that spell's mana value.
Access Denied
It'll Quench Ya!Counter target spell unless its controller pays {2}.
It'll Quench Ya!
Mana SculptCounter target spell. If you control a Wizard, add an amount of {C} equal to the amount of mana spent to cast that spell at the beginning of your next main phase.
Mana Sculpt
SyncopateCounter 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.
Syncopate
Spell StutterCounter target spell unless its controller pays {2} plus an additional {1} for each Faerie you control.
Spell Stutter
Amazing AcrobaticsChoose one or both —
• Counter target spell.
• Tap one or two target creatures.
Amazing Acrobatics
SubtletyFlash
Flying
When this creature enters, choose up to one target creature spell or planeswalker spell. Its owner puts it on their choice of the top or bottom of their library.
Evoke—Exile a blue card from your hand.
Subtlety
Dazzling DenialCounter target spell unless its controller pays {2}. If you control a Bird, counter that spell unless its controller pays {4} instead.
Dazzling Denial
FoilYou may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.
Foil
Malevolent Hermit // Benevolent Geist{U}, Sacrifice this creature: Counter target noncreature spell unless its controller pays {3}.
Disturb {2}{U} (You may cast this card from your graveyard transformed for its disturb cost.) // Flying
Noncreature spells you control can't be countered.
If Benevolent Geist would be put into a graveyard from anywhere, exile it instead.
Malevolent Hermit // Benevolent Geist
Permission DeniedCounter target noncreature spell. Your opponents can't cast noncreature spells this turn.
Permission Denied
Quandrix CommandChoose two —
• Return target creature or planeswalker to its owner's hand.
• Counter target artifact or enchantment spell.
• Put two +1/+1 counters on target creature.
• Target player shuffles up to three target cards from their graveyard into their library.
Quandrix Command
Dream FractureCounter target spell. Its controller draws a card.
Draw a card.
Dream Fracture
VoidslimeCounter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)
Voidslime
StifleCounter target activated or triggered ability. (Mana abilities can't be targeted.)
Stifle
AnnulCounter target artifact or enchantment spell.
Annul
RemandCounter target spell. If that spell is countered this way, put it into its owner's hand instead of into that player's graveyard.
Draw a card.
Remand
Wizard's RetortThis spell costs {1} less to cast if you control a Wizard.
Counter target spell.
Wizard's Retort
Vodalian HexcatcherFlash
Other Merfolk you control get +1/+1.
Sacrifice a Merfolk: Counter target noncreature spell unless its controller pays {1}.
Vodalian Hexcatcher
Reject ImperfectionCounter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Reject Imperfection
Saruman's TrickeryCounter target spell.
Amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)
Saruman's Trickery
Tale's EndCounter target activated ability, triggered ability, or legendary spell.
Tale's End
Possibility StormWhenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it. That player may cast that card without paying its mana cost. Then they put all cards exiled with this enchantment on the bottom of their library in a random order.
Possibility Storm
Overcharged AmalgamFlash
Flying
Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, counter target spell, activated ability, or triggered ability.
Overcharged Amalgam
Bant CharmChoose one —
• Destroy target artifact.
• Put target creature on the bottom of its owner's library.
• Counter target instant spell.
Bant Charm
Verdant CommandChoose two —
• Target player creates two tapped 1/1 green Squirrel creature tokens.
• Counter target loyalty ability of a planeswalker.
• Exile target card from a graveyard.
• Target player gains 3 life.
Verdant Command
Reverse the PolarityChoose one —
• Counter all other spells.
• Switch each creature's power and toughness until end of turn.
• Creatures can't be blocked this turn.
Reverse the Polarity
Withering BoonAs an additional cost to cast this spell, pay 3 life.
Counter target creature spell.
Withering Boon
UnsubstantiateReturn target spell or creature to its owner's hand.
Unsubstantiate
PerplexCounter target spell unless its controller discards their hand.
Transmute {1}{U}{B} ({1}{U}{B}, 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.)
Perplex
Fear of ImpostorsFlash
When this creature enters, counter target spell. Its controller manifests dread. (That player looks at the top two cards of their library, then puts one onto the battlefield face down as a 2/2 creature and the other into their graveyard. If it's a creature card, it can be turned face up any time for its mana cost.)
Fear of Impostors
Lofty DenialCounter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.
Lofty Denial
Press the EnemyReturn target spell or nonland permanent an opponent controls to its owner's hand. You may cast an instant or sorcery spell with equal or lesser mana value from your hand without paying its mana cost.
Press the Enemy
Hindering LightCounter target spell that targets you or a permanent you control.
Draw a card.
Hindering Light
Glorious GaleCounter target creature spell. If it was a legendary spell, the Ring tempts you.
Glorious Gale
Judge's FamiliarFlying
Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {1}.
Judge's Familiar
Kira, Great Glass-SpinnerFlying
Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."
Kira, Great Glass-Spinner
Green SlimeFlash
When this creature enters, counter target activated or triggered ability from an artifact or enchantment source. If a permanent's ability is countered this way, destroy that permanent.
Foretell {G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Green Slime
Sapphire Dragon // Psionic PulseFlying
Whenever this creature attacks or blocks, scry 2. // Counter target noncreature spell. (Then exile this card. You may cast the creature later from exile.)
Sapphire Dragon // Psionic Pulse
Thought CollapseCounter target spell. Its controller mills three cards.
Thought Collapse
ElectrosiphonCounter target spell. You get an amount of {E} (energy counters) equal to its mana value.
Electrosiphon
Hypnotic Sprite // Mesmeric GlareFlying // Counter target spell with mana value 3 or less. (Then exile this card. You may cast the creature later from exile.)
Hypnotic Sprite // Mesmeric Glare
Essence CaptureCounter target creature spell. Put a +1/+1 counter on up to one target creature you control.
Essence Capture
Mystic SnakeFlash
When this creature enters, counter target spell.
Mystic Snake
Glen Elendra GuardianFlash
Flying
This creature enters with a -1/-1 counter on it.
{1}{U}, Remove a counter from this creature: Counter target noncreature spell. Its controller draws a card.
Glen Elendra Guardian
You Find the Villains' LairChoose one —
• Foil Their Scheme — Counter target spell.
• Learn Their Secrets — Draw two cards, then discard two cards.
You Find the Villains' Lair
Keep SafeCounter target spell that targets a permanent you control.
Draw a card.
Keep Safe
Get OutChoose one —
• Counter target creature or enchantment spell.
• Return one or two target creatures and/or enchantments you own to your hand.
Get Out
No More LiesCounter target spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
No More Lies
CounterfluxThis spell can't be countered.
Counter target spell you don't control.
Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
Counterflux
CondescendCounter target spell unless its controller pays {X}. 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.)
Condescend
Don't Make a SoundCounter target spell unless its controller pays {2}. If they do, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Don't Make a Sound
Bilbo's GambitGift a Treasure (You may promise an opponent a gift as you cast this spell. If you do, they create a Treasure token before its other effects. It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Return target spell to its owner's hand. If the gift was promised, players can't cast spells this turn.
Bilbo's Gambit
Louisoix's SacrificeAs an additional cost to cast this spell, sacrifice a legendary creature or pay {2}.
Counter target activated ability, triggered ability, or noncreature spell.
Louisoix's Sacrifice
UndermineCounter target spell. Its controller loses 3 life.
Undermine
AbjureAs an additional cost to cast this spell, sacrifice a blue permanent.
Counter target spell.
Abjure
Nimble ObstructionistFlash
Flying
Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)
When you cycle this card, counter target activated or triggered ability you don't control.
Nimble Obstructionist
DissolveCounter target spell. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Dissolve
Whirlwind DenialFor each spell and ability your opponents control, counter it unless its controller pays {4}.
Whirlwind Denial
Sinister SabotageCounter target spell.
Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
Sinister Sabotage
DissipateCounter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
Dissipate
Lapse of CertaintyCounter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.
Lapse of Certainty
DefabricateChoose one —
• Counter target artifact or enchantment spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
• Counter target activated or triggered ability.
Defabricate
Jace, Unraveler of Secrets+1: Scry 1, then draw a card.
−2: Return target creature to its owner's hand.
−8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."
Jace, Unraveler of Secrets
Fuel for the CauseCounter target spell, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Fuel for the Cause
TrickbindSplit second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Counter target activated or triggered ability. If a permanent's ability is countered this way, activated abilities of that permanent can't be activated this turn. (Mana abilities can't be targeted.)
Trickbind
Bane's ContingencyCounter target spell. If that spell targets a commander you control, instead counter that spell, scry 2, then draw a card.
Bane's Contingency
Disruption ProtocolAs an additional cost to cast this spell, tap an untapped artifact you control or pay {1}.
Counter target spell.
Disruption Protocol
Turn AsideCounter target spell that targets a permanent you control.
Turn Aside
Stoic RebuttalMetalcraft — This spell costs {1} less to cast if you control three or more artifacts.
Counter target spell.
Stoic Rebuttal
Plasm CaptureCounter target spell. At the beginning of your next first main phase, add X mana in any combination of colors, where X is that spell's mana value.
Plasm Capture
Knowledge PoolImprint — When this artifact enters, each player exiles the top three cards of their library.
Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with this artifact without paying its mana cost.
Knowledge Pool
Mausoleum WandererFlying
Whenever another Spirit you control enters, this creature gets +1/+1 until end of turn.
Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {X}, where X is this creature's power.
Mausoleum Wanderer
Familiar's RuseAs an additional cost to cast this spell, return a creature you control to its owner's hand.
Counter target spell.
Familiar's Ruse
Smirking SpelljackerFlash
Flying
When this creature enters, exile target spell an opponent controls.
Whenever this creature attacks, if a card is exiled with it, you may cast the exiled card without paying its mana cost.
Smirking Spelljacker
Planar ChaosAt the beginning of your upkeep, flip a coin. If you lose the flip, sacrifice this enchantment.
Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell.
Planar Chaos
Transcendent DragonFlash
Flying
When this creature enters, if you cast it, counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard, then you may cast it without paying its mana cost.
Transcendent Dragon
Thassa's InterventionChoose one —
• Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.
• Counter target spell unless its controller pays twice {X}.
Thassa's Intervention
NeutralizeCounter target spell.
Cycling {2} ({2}, Discard this card: Draw a card.)
Neutralize
Glen Elendra's AnswerThis spell can't be countered.
Counter all spells your opponents control and all abilities your opponents control. Create a 1/1 blue and black Faerie creature token with flying for each spell and ability countered this way.
Glen Elendra's Answer
Split DecisionWill of the council — Choose target instant or sorcery spell. Starting with you, each player votes for denial or duplication. If denial gets more votes, counter the spell. If duplication gets more votes or the vote is tied, copy the spell. You may choose new targets for the copy.
Split Decision
Time StopEnd the turn. (Exile all spells and abilities, including this spell. The player whose turn it is discards down to their maximum hand size. Damage heals and "this turn" and "until end of turn" effects end.)
Time Stop
DesertionCounter target spell. If an artifact or creature spell is countered this way, put that card onto the battlefield under your control instead of into its owner's graveyard.
Desertion
Frilled MysticFlash
When this creature enters, you may counter target spell.
Frilled Mystic
Diversion UnitFlying
{U}, Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays {3}.
Diversion Unit
Consign to MemoryReplicate {1} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Counter target triggered ability or colorless spell.
Consign to Memory
Artistic RefusalConvoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Choose one or both —
• Counter target spell.
• Draw two cards, then discard a card.
Artistic Refusal
Endless DetourThe owner of target spell, nonland permanent, or card in a graveyard puts it on their choice of the top or bottom of their library.
Endless Detour
Temur CharmChoose one —
• Target creature you control gets +1/+1 until end of turn. It fights target creature you don't control.
• Counter target spell unless its controller pays {3}.
• Creatures with power 3 or less can't block this turn.
Temur Charm
Aether SpikeChoose target spell. You get {E}{E} (two energy counters), then you may pay any amount of {E}. Counter that spell unless its controller pays {1} for each {E} paid this way.
Aether Spike
Divert DisasterCounter target spell unless its controller pays {2}. If they do, you create a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")
Divert Disaster
IonizeCounter target spell. Ionize deals 2 damage to that spell's controller.
Ionize
Circular LogicCounter 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.)