Raid -- If you attacked this turn, you may pay {U} rather than pay this spell's mana cost.

Counter target spell.

+2: Exile the top three cards of target opponent's library.

-X: Put a creature card with mana value X exiled with Ashiok, Nightmare Weaver onto the battlefield under your control. That creature is a Nightmare in addition to its other types.

-10: Exile all cards from all opponents' hands and graveyards.

Draw two cards. Then discard a card unless you attacked this turn.

Draw two cards. Then discard a card unless you attacked this turn.

Draw two cards. Then discard a card unless you attacked this turn.

Whenever you cast a blue spell, exile the top card of target player's library.

Whenever you cast a black spell, exile the top card of target player's library.

Your opponents can't cast spells with the same name as a card exiled with Circu, Dimir Lobotomist.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, you may draw a card."

At the beginning of your end step, if you didn't attack with a creature this turn, sacrifice Curious Obsession.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, you may draw a card."

At the beginning of your end step, if you didn't attack with a creature this turn, sacrifice Curious Obsession.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, you may draw a card."

At the beginning of your end step, if you didn't attack with a creature this turn, sacrifice Curious Obsession.

Surveil 2, then draw a card. (To 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.)

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Each opponent returns a nonland permanent they control with the highest mana value among permanents they control to its owner's hand, then discards a card.

Surveil 2, then draw a card. (To 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.)

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Each opponent returns a nonland permanent they control with the highest mana value among permanents they control to its owner's hand, then discards a card.

Surveil 2, then draw a card. (To 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.)

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Each opponent returns a nonland permanent they control with the highest mana value among permanents they control to its owner's hand, then discards a card.

Surveil 2, then draw a card. (To 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.)

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Each opponent returns a nonland permanent they control with the highest mana value among permanents they control to its owner's hand, then discards a card.

When Disinformation Campaign enters the battlefield, you draw a card and each opponent discards a card.

Whenever you surveil, return Disinformation Campaign to its owner's hand.

When Disinformation Campaign enters the battlefield, you draw a card and each opponent discards a card.

Whenever you surveil, return Disinformation Campaign to its owner's hand.

When Disinformation Campaign enters the battlefield, you draw a card and each opponent discards a card.

Whenever you surveil, return Disinformation Campaign to its owner's hand.

When Disinformation Campaign enters the battlefield, you draw a card and each opponent discards a card.

Whenever you surveil, return Disinformation Campaign to its owner's hand.

Target player mills ten cards.

When Lazav, the Multifarious enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

{X}: Lazav, the Multifarious becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.

Mist-Cloaked Herald can't be blocked.

Mist-Cloaked Herald can't be blocked.

Mist-Cloaked Herald can't be blocked.

Mist-Cloaked Herald can't be blocked.

Raid -- At the beginning of your end step, if you attacked this turn, target opponent mills four cards.

Raid -- At the beginning of your end step, if you attacked this turn, target opponent mills four cards.

Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (To 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.)

Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (To 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.)

Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (To 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.)

Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (To 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.)

Target player mills two cards. Draw two cards.

Whenever you draw a card, each opponent mills two cards.

Whenever you draw a card, each opponent mills two cards.

River Sneak can't be blocked.

Whenever another Merfolk enters the battlefield under your control, River Sneak gets +1/+1 until end of turn.

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Whenever a Merfolk you control deals combat damage to a player, draw a card.

Whenever a Merfolk you control deals combat damage to a player, draw a card.

When Sentinel Totem enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{T}, Exile Sentinel Totem: Exile all graveyards.

When Sentinel Totem enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{T}, Exile Sentinel Totem: Exile all graveyards.

Return target creature to its owner's hand.

Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Return target creature to its owner's hand.

Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Return target creature to its owner's hand.

Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target spell.

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

Counter target spell.

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

Flying

Whenever Thief of Sanity deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, then put the rest into their graveyard. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast it.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.

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

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.