Horrors you control have menace.

Whenever a Horror you control deals combat damage to a player, that player mills that many cards.

At the beginning of your end step, choose target artifact or creature card in an opponent's graveyard that was put there from their library this turn. Put it onto the battlefield under your control.

Captive Audience enters the battlefield under the control of an opponent of your choice.

At the beginning of your upkeep, choose one that hasn't been chosen —

• Your life total becomes 4.

• Discard your hand.

• Each opponent creates five 2/2 black Zombie creature tokens.

Enchant creature

Enchanted creature can't attack or block.

When Captured by Lagacs enters the battlefield, support 2. (Put a +1/+1 counter on each of up to two target creatures.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

You gain 4 life.

Enchant creature

For each other card named Cardboard Carapace you have with you outside the game, enchanted creature gets +1/+1.

Target player draws four cards, then discards three cards. If you cast this spell during your main phase, instead that player draws four cards, then discards two cards.

Whenever a creature blocks, that creature's controller loses 1 life.

: Regenerate Carnage Gladiator.

: Add . If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

First strike, haste

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Carrion Feeder can't block.

Sacrifice a creature: Put a +1/+1 counter on Carrion Feeder.

Enchant creature you control

When Cartouche of Solidarity enters the battlefield, create a 1/1 white Warrior creature token with vigilance.

Enchanted creature gets +1/+1 and has first strike.

: Add .

, : Add , , or .

Indestructible

: Add .

, : Add five mana in any combination of colors.

When this Case enters the battlefield, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

To solve — You control three or more artifacts. (If unsolved, solve at the beginning of your end step.)

Solved — , Sacrifice this Case: Put four +1/+1 counters on target noncreature artifact. It becomes a 0/0 Bird creature with flying in addition to its other types.

Whenever a Detective enters the battlefield under your control and whenever a Detective you control is turned face up, put a +1/+1 counter on it.

To solve — You control three or more Detectives. (If unsolved, solve at the beginning of your end step.)

Solved — If one or more tokens would be created under your control, those tokens plus a Clue token are created instead. (It's an artifact with ", Sacrifice this artifact: Draw a card.")

When this Case enters the battlefield, search your library for a basic land card, reveal it, put it into your hand, then shuffle.

To solve — There are five colors among permanents you control. (If unsolved, solve at the beginning of your end step.)

Solved — At the beginning of combat on your turn, target creature you control gains flying, double strike, and vigilance until end of turn.

When this Case enters the battlefield, distribute two +1/+1 counters among one or two target creatures you control.

To solve — Creatures you control have total power 8 or greater. (If unsolved, solve at the beginning of your end step.)

Solved — Whenever you attack, put a +1/+1 counter on target attacking creature. It gains trample until end of turn.

Destroy target nonlegendary creature.

Destroy all non-Giant creatures. (Then exile this card. You may cast the creature later from exile.)

Castle Ardenvale enters the battlefield tapped unless you control a Plains.

: Add .

, : Create a 1/1 white Human creature token.

Flying

Whenever Catacomb Dragon becomes blocked by a nonartifact, non-Dragon creature, that creature gets -X/-0 until end of turn, where X is half the creature's power, rounded down.

Tap two untapped Soldiers you control: Catapult Squad deals 2 damage to target attacking or blocking creature.

Sacrifice a creature: Regenerate Cateran Overlord.

, : Search your library for a Mercenary permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.

Flash

, Sacrifice Cathar Commando: Destroy target artifact or enchantment.

Equipped creature gets +0/+3 and has vigilance.

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

Each creature you control with a counter on it has ward . (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

: Put a +1/+1 counter on target creature that entered the battlefield this turn.

White legendary creatures you control have "bands with other legendary creatures." (Any legendary creatures can attack in a band as long as at least one has "bands with other legendary creatures." Bands are blocked as a group. If at least two legendary creatures you control, one of which has "bands with other legendary creatures," are blocking or being blocked by the same creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

When Cathedral Sanctifier enters the battlefield, you gain 3 life.

This spell can't be countered. (This includes by the ward ability.)

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Suspect it. (It has menace and can't block.)

When Cauldron Familiar enters the battlefield, each opponent loses 1 life and you gain 1 life.

Sacrifice a Food: Return Cauldron Familiar from your graveyard to the battlefield.

: Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it 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.)

When Caustic Hound dies, each player loses 4 life.

Vigilance

When Cavalier of Dawn enters the battlefield, destroy up to one target nonland permanent. Its controller creates a 3/3 colorless Golem artifact creature token.

When Cavalier of Dawn dies, return target artifact or enchantment card from your graveyard to your hand.

If you control two or more other lands, Cave of the Frost Dragon enters the battlefield tapped.

: Add .

: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.

This spell costs less to cast, where X is the greatest number of artifacts an opponent controls.

Flying, trample, haste

Whenever Cavern-Hoard Dragon deals combat damage to a player, you create a Treasure token for each artifact that player controls.

Trample

When Caves of Chaos Adventurer enters the battlefield, you take the initiative.

Whenever Caves of Chaos Adventurer attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play that card this turn.

Exile up to two target cards from a single graveyard. Target player gains 2 life and draws a card.

Celestial Colonnade enters the battlefield tapped.

: Add or .

: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

Lands you control are Plains.

Nonland permanents you control are white. The same is true for spells you control and nonland cards you own that aren't on the battlefield.

You may spend white mana as though it were mana of any color. You may spend other mana only as though it were colorless mana.

, : Target creature you control gets +3/+3 until end of turn. Its controller sacrifices it at the beginning of the next end step.

Menace

When Cemetery Desecrator enters the battlefield or dies, exile another card from a graveyard. When you do, choose one —

• Remove X counters from target permanent, where X is the mana value of the exiled card.

• Target creature an opponent controls gets -X/-X until end of turn, where X is the mana value of the exiled card.

: Create a 3/3 green Centaur creature token.

( can be paid with either or .)

When Centaur Safeguard dies, you may gain 3 life.

Whenever Cephalid Aristocrat becomes the target of a spell or ability, mill two cards.

: Add . Cephalid Coliseum deals 1 damage to you.

Threshold — , , Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Cephalid Facetaker can't be blocked.

At the beginning of combat on your turn, you may have Cephalid Facetaker become a copy of another target creature until end of turn, except it's 1/4 and has "This creature can't be blocked."

Discard a card: Cephalid Inkshrouder gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)

Cephalid Pathmage can't be blocked.

, Sacrifice Cephalid Pathmage: Target creature can't be blocked this turn.

Threshold — As long as seven or more cards are in your graveyard, Cephalid Sage has "When Cephalid Sage enters the battlefield, draw three cards, then discard two cards."

Whenever a player casts a spell, counter that spell unless that player pays , where X is the number of cards in all graveyards with the same name as the spell.