Flying

Whenever a player sacrifices a permanent, put a +1/+1 counter on Carmen, Cruel Skymarcher and you gain 1 life.

Whenever Carmen attacks, return up to one target permanent card with mana value less than or equal to Carmen's power from your graveyard to the battlefield.

When Carnage Interpreter enters, discard your hand, then investigate four times. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

As long as you have one or fewer cards in hand, Carnage Interpreter gets +2/+2 and has menace.

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Flying

Carnifex Demon enters with two -1/-1 counters on it.

, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.

Deathtouch

When Carnival Carnivore enters, you get , then you may put a sticker on a nonland permanent you own.

Flying

At the beginning of your upkeep, sacrifice Carnivorous Death-Parrot unless you say its flavor text.

Defender

Flying

When Carrier Pigeons enters, draw a card at the beginning of the next turn's upkeep.

: Carrion Ants gets +1/+1 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Carrion Crow enters tapped.

Carrion Grub gets +X/+0, where X is the greatest power among creature cards in your graveyard.

When Carrion Grub enters, mill four cards. (Put the top four cards of your library into your graveyard.)

Flying

When Carrion Imp enters, you may exile target creature card from a graveyard. If you do, you gain 2 life.

Whenever Carrion Rats attacks or blocks, any player may exile a card from their graveyard. If a player does, Carrion Rats assigns no combat damage this turn.

When Carrion Thrash dies, you may pay . If you do, return another target creature card from your graveyard to your hand.

Whenever Carrion Wurm attacks or blocks, any player may exile three cards from their graveyard. If a player does, Carrion Wurm assigns no combat damage this turn.

Sacrifice another creature: Cartel Aristocrat gains protection from the color of your choice until end of turn.

When Cartographer enters, you may return target land card from your graveyard to your hand.

Flying

When Cartographer's Hawk deals combat damage to a player who controls more lands than you, return it to its owner's hand. If you do, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

When Cascade Seer enters, scry X, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Vigilance

Whenever Cass or another creature you control dies, if it was enchanted or equipped, return any number of Aura cards that were attached to it from your graveyard to the battlefield attached to target creature, then attach any number of Equipment that were attached to it to that creature.

Flying

As long as Castle Raptors is untapped, it gets +0/+2.

, : Target player discards a card. Activate only as a sorcery.

Vigilance

When Cataclysmic Gearhulk enters, each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest.

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.

, , Sacrifice another creature: Target opponent loses life equal to the sacrificed creature's toughness.

Tap five untapped Soldiers you control: Exile target creature.

, : Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

, : Search your library for a Mercenary permanent card with mana value 1 or less, put it onto the battlefield, then shuffle.

Goblins you control and Elementals you control have menace. (They can't be blocked except by two or more creatures.)

Whenever you cast a noncreature spell, Cathar's Companion gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

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 this turn.

When Cathedral Sanctifier enters, you gain 3 life.

First strike, reach

Whenever Catti-brie of Mithral Hall attacks, put a +1/+1 counter on it for each Equipment attached to it.

, Remove all +1/+1 counters from Catti-brie: It deals X damage to target attacking or blocking creature an opponent controls, where X is the number of counters removed this way.

Whenever Caustic Bronco attacks, reveal the top card of your library and put it into your hand. You lose life equal to that card's mana value if Caustic Bronco isn't saddled. Otherwise, each opponent loses that much life.

Saddle 3 (Tap any number of other creatures you control with total power 3 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Landfall — Whenever a land you control enters, you may have target creature get -1/-1 until end of turn.

Flying

Whenever Caustic Wasps deals combat damage to a player, you may destroy target artifact that player controls.

Survival — At the beginning of your second main phase, if Cautious Survivor is tapped, you gain 2 life.

: Creatures you control get +1/+0 and gain haste until end of turn.

When Cavalier of Flame enters, discard any number of cards, then draw that many cards.

When Cavalier of Flame dies, it deals X damage to each opponent and each planeswalker they control, where X is the number of land cards in your graveyard.

Lifelink

When Cavalier of Night enters, you may sacrifice another creature. When you do, destroy target creature an opponent controls.

When Cavalier of Night dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.

When Cavalry Drillmaster enters, target creature gets +2/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Flying

Whenever Cavalry Pegasus attacks, each attacking Human gains flying until end of turn.

Whenever Cave Tiger becomes blocked by a creature, Cave Tiger gets +1/+1 until end of turn.

Flying

When Cavern Harpy enters, return a blue or black creature you control to its owner's hand.

Pay 1 life: Return Cavern Harpy to its owner's hand.

When Cavern Stomper enters, 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.)

: Cavern Stomper can't be blocked by creatures with power 2 or less this turn.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Menace (This creature can't be blocked except by two or more creatures.)

Whenever this creature mutates, each opponent discards a card.

Trample

When Caves of Chaos Adventurer enters, 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.

Partner with Ukkima, Stalking Shadow (When this creature enters, target player may put Ukkima into their hand from their library, then shuffle.)

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

Whenever you attack with one or more Elves, scry 1.

Whenever you scry, Celeborn the Wise gets +1/+1 until end of turn for each card looked at while scrying this way.