Destroy target creature. The Ring tempts you.

As Clam Session enters, choose a word.

At the beginning of your upkeep, you may sing at least six words of a song, at least one of which is the chosen word. If you don't, sacrifice Clam Session. You can't repeat a song.

Whenever Clammy Prowler attacks, another target attacking creature can't be blocked this turn.

When Clandestine Chameleon enters, you get , then you may put a sticker on a nonland permanent you own.

Clandestine Chameleon has all abilities of ability stickers on other permanents you own and cards in your graveyard.

When Clarion Cathars enters, create a 1/1 white Human creature token.

Choose five permanents you control. For each of those permanents, you may search your library for a card with the same name as that permanent. Put those cards onto the battlefield tapped, then shuffle.

Target creature fights another target creature. (Each deals damage equal to its power to the other.)

When Clattering Skeletons dies, venture into the dungeon. (Enter the first room or advance to the next room.)

Whenever you attack, target attacking Vampire that isn't a Demon becomes a Demon in addition to its other types. It gains "When this creature dies, draw a card and create a tapped 4/3 white and black Vampire Demon creature token with flying."

, Sacrifice a permanent: You gain 1 life.

Claws of Wirewood deals 3 damage to each creature with flying and each player.

Cycling (, Discard this card: Draw a card.)

Clay Champion enters with three +1/+1 counters on it for each spent to cast it.

When Clay Champion enters, choose up to two other target creatures you control. For each spent to cast Clay Champion, put a +1/+1 counter on each of them.

Flying

, Throw Clay Pigeon into the air at least two feet above your head while seated: If you catch Clay Pigeon with one hand, prevent all damage a source of your choice would deal to you this turn and tap Clay Pigeon. Otherwise, sacrifice it.

Choose one —

• Destroy all creatures.

• Destroy all artifacts and enchantments.

Sunburst (This enters with a charge counter on it for each color of mana spent to cast it.)

At the beginning of your upkeep, you may gain life equal to the number of charge counters on Clearwater Goblet.

Multicleave (You may pay an additional any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.)

Destroy target nonblack creature with mana value 3 or less an opponent controls. You and its controller each draw a card and lose 2 life. Create a tapped 1/1 white Spirit creature token with flying.

Vigilance

Whenever Clement, the Worrywort or another creature you control enters, return up to one target creature you control with lesser mana value to its owner's hand.

Frogs you control have ": Add or . Spend this mana only to cast a creature spell."

If Clergy of the Holy Nimbus would be destroyed, regenerate it.

: Clergy of the Holy Nimbus can't be regenerated this turn. Only your opponents may activate this ability.

Whenever another Cleric you control enters, you gain 1 life.

Whenever you gain life for the first time each turn, put a +1/+1 counter on Cleric of Life's Bond.

Search your library for a host card or a card with augment, reveal it, put it into your hand, then shuffle.

Mage Hand — : Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

You may have Clever Impersonator enter as a copy of any nonland permanent on the battlefield.

Cliffrunner Behemoth has haste as long as you control a red permanent.

Cliffrunner Behemoth has lifelink as long as you control a white permanent.

Reach

When Clifftop Lookout enters, reveal cards from the top of your library until you reveal a land card. Put that card onto the battlefield tapped and the rest on the bottom of your library in a random order.

Exile target card from a graveyard. If it was a creature card, you gain 3 life. Otherwise, you draw a card.

Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Equipped creature gets +2/+0 and has shroud. (It can't be the target of spells or abilities.)

Whenever a Rogue creature enters, you may attach Cloak and Dagger to it.

Equip

Target creature gains flying until end of turn.

Draw a card.

Enchant creature

Enchanted creature can't be blocked.

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.)

Whenever one or more +1/+1 counters are put on one or more Humans you control, draw a card. This ability triggers only once each turn.

Commander creatures you own have "At the beginning of your end step, if a creature card was put into your graveyard from anywhere this turn, create two tapped 1/1 green Squirrel creature tokens."

, : Move the CRANK counter to your Contraption deck's next sprocket and crank any number of that sprocket's Contraptions.

When Clocknapper enters, choose beginning phase, first main phase, combat phase, postcombat main phase, or ending phase. Steal that phase from target player during their next turn. (That phase occurs as though it's your turn instead.)

Flying

Clockwork Avian enters with four +1/+0 counters on it.

At end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Avian. This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four. Activate only during your upkeep.

Clockwork Beetle enters with two +1/+1 counters on it.

Whenever Clockwork Beetle attacks or blocks, remove a +1/+1 counter from it at end of combat.

Flying

Clockwork Dragon enters with six +1/+1 counters on it.

Whenever Clockwork Dragon attacks or blocks, remove a +1/+1 counter from it at end of combat.

: Put a +1/+1 counter on Clockwork Dragon.

You may exert Clockwork Droid as it attacks. When you do, it can't be blocked this turn and you scry 1. (An exerted creature won't untap during your next untap step. To scry 1, look at the top card of your library. You may put that card on the bottom.)

, : Regenerate target artifact creature.

Haste

When Clockwork Percussionist dies, exile the top card of your library. You may play it until the end of your next turn.

Clockwork Steed enters with four +1/+0 counters on it.

Clockwork Steed can't be blocked by artifact creatures.

At end of combat, if Clockwork Steed attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Steed. This ability can't cause the total number of +1/+0 counters on Clockwork Steed to be greater than four. Activate only during your upkeep.

Trample

Clockwork Vorrac enters with four +1/+1 counters on it.

Whenever Clockwork Vorrac attacks or blocks, remove a +1/+1 counter from it at end of combat.

: Put a +1/+1 counter on Clockwork Vorrac.

At the beginning of your upkeep, you may transform Cloistered Youth.

When Clone Crafter enters the battlefield, conjure a duplicate of a random creature card from your opponent's library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

Imprint — When Clone Shell enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom of your library in any order.

When Clone Shell dies, turn the exiled card face up. If it's a creature card, put it onto the battlefield under your control.

This spell costs less to cast during your end step.

Destroy target creature or planeswalker you don't control. Put a +1/+1 counter on up to one target creature you control.

Whenever another permanent you control becomes the target of a spell or ability an opponent controls, you may return that permanent to its owner's hand.

Flying

Cloud Djinn can block only creatures with flying.

Flying

Cloud Elemental can block only creatures with flying.

Flying

Flying

Cloud Pirates can block only creatures with flying.

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

Cloud Sprite can block only creatures with flying.