Exile the top X cards of your library. For each land card exiled this way, create a Treasure token. For each blue card exiled this way, draw a card. For each red card exiled this way, Culmination of Studies deals 1 damage to each opponent.

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, Cult Healer gains lifelink until end of turn.

Whenever a permanent you control transforms into a non-Human creature, create a 2/2 green Wolf creature token.

Commander creatures you own get +3/+3 and have flying, deathtouch, "Ward—Pay 3 life," and "At the beginning of your upkeep, sacrifice a creature."

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Devoid (This card has no color.)

: Add . Spend this mana only to cast a colorless spell, activate an ability of a colorless permanent, or pay a cost that contains . ( represents colorless mana.)

: Add one mana of any color.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

When Culvert Ambusher enters or is turned face up, target creature blocks this turn if able.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Cunning Bandit.

At the beginning of the end step, if there are two or more ki counters on Cunning Bandit, you may flip it.

Whenever a creature you control becomes blocked, you may return it to its owner's hand.

If Cunning Giant is unblocked, you may have it assign its combat damage to a creature defending player controls.

Haste

: Cunning Sparkmage deals 1 damage to any target.

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.)

Draw a card.

This spell can't be countered.

Flying

When this creature enters, look at the top five cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard.

Whenever you discover, discover again for the same value. This ability triggers only once each turn.

Flying

You have no maximum hand size.

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

Flying

When you sacrifice a Clue, return Curious Cadaver from your graveyard to your hand.

Enchant artifact

At the beginning of the upkeep of enchanted artifact's controller, Curse Artifact deals 2 damage to that player unless they sacrifice that artifact.

Enchant player

Whenever a player attacks enchanted player with one or more creatures, that attacking player may discard a card. If the player does, they draw a card.

Enchant player

Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.

Enchant player

Creatures attacking enchanted player have trample.

Whenever a creature deals combat damage to enchanted player, that player exiles the top card of their library. Until end of turn, that creature's controller may play that card and they may spend mana as though it were mana of any color to cast that spell.

When Curse of Marit Lage enters, tap all Islands.

Islands don't untap during their controllers' untap steps.

Enchant player

Whenever enchanted player casts a spell other than the first spell they cast each turn or copies a spell, Curse of Shaken Faith deals 2 damage to them.

Enchant player

Whenever a creature deals combat damage to enchanted player, put a +1/+1 counter on that creature.

Target player sacrifices half the permanents they control of their choice, rounded down.

Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

At the beginning of each player's upkeep, if Curse of the Cabal is suspended, that player may sacrifice a permanent of their choice. If the player does, put two time counters on Curse of the Cabal.

Trample

When this creature dies, return Curse of the Fire Penguin to the battlefield.

Enchant player

At the beginning of enchanted player's upkeep, Curse of the Pierced Heart deals 1 damage to that player or a planeswalker that player controls.

Enchant player

Whenever enchanted player casts a spell, put a spite counter on Curse of Vengeance.

When enchanted player loses the game, you gain X life and draw X cards, where X is the number of spite counters on Curse of Vengeance.

As Curse of Wizardry enters, choose a color.

Whenever a player casts a spell of the chosen color, that player loses 1 life.

Sacrifice Cursecatcher: Counter target instant or sorcery spell unless its controller pays .

Enchant land

At the beginning of the upkeep of enchanted land's controller, Cursed Land deals 1 damage to that player.

As Cursed Rack enters, choose an opponent.

The chosen player's maximum hand size is four.

: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)

Permanents you control have "Whenever one or more +1/+1 counters are put on this permanent, put an additional +1/+1 counter on it. This ability triggers only once each turn."

Undaunted (This spell costs less to cast for each opponent.)

Destroy two target creatures.

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Whenever Custodi Soulcaller attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of players you attacked this combat.

Enchant creature

Enchanted creature has "At the beginning of your upkeep, target opponent gains control of this creature unless you sacrifice a land."

Return target enchanted permanent to its owner's hand.

Pay 1 life: Cutthroat Contender gets +1/+0 until end of turn. Activate only once each turn.

Up to two target creatures each get +1/+1 and gain lifelink until end of turn.

Flying

Other artifact creatures you control have flying.

When Cyberdrive Awakener enters, until end of turn, each noncreature artifact you control becomes an artifact creature with base power and toughness 4/4.

Skulk (This creature can't be blocked by creatures with greater power.)

Whenever Cybermat attacks and isn't blocked, it gets +X/+0 until end of turn, where X is the number of attacking artifact creatures.

Protection from Robots

Field Reprogramming — , : Target player draws a card. Another target player creates a 4/4 colorless Robot artifact creature token with "This creature can't block."

Living metal (During your turn, this Vehicle is also a creature.)

Flying

Whenever Cyclonus deals combat damage to a player, convert it. If you do, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

When Cyclopean Giant dies, target land becomes a Swamp. Exile Cyclopean Giant.

, : Tap target creature, then return Cyclopean Snare to its owner's hand.

, : Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep.

When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb.

Whenever Cyclops Gladiator attacks, you may have it deal damage equal to its power to target creature defending player controls. If you do, that creature deals damage equal to its power to Cyclops Gladiator.