Counter target spell unless its controller pays for each card in your graveyard.

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

Put a +1/+1 counter on target creature, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Up to one target creature you control gains protection from each of your opponents until end of turn. Draw a card. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything controlled by those players.)

Fateful hour — If you have 5 or less life, you can't lose life this turn, you can't lose the game this turn, and your opponents can't win the game this turn.

When Court of Cunning enters the battlefield, you become the monarch.

At the beginning of your upkeep, any number of target players each mill two cards. If you're the monarch, each of those players mills ten cards instead. (To mill a card, a player puts the top card of their library into their graveyard.)

When Court of Grace enters the battlefield, you become the monarch.

At the beginning of your upkeep, create a 1/1 white Spirit creature token with flying. If you're the monarch, create a 4/4 white Angel creature token with flying instead.

Each player chooses up to two creatures they control, then sacrifices the rest. Then you create a tapped Treasure token for each creature your opponents control.

Target opponent reveals their hand. You choose a nonland card from that player's graveyard or hand and exile it. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.

Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls.

Enchant land you control

Enchanted land is a 3/3 red Spirit creature with haste. It's still a land.

If enchanted land would be destroyed, instead sacrifice Crackling Emergence and that land gains indestructible until end of turn.

Flash

When Crackling Spellslinger enters the battlefield, if you cast it, the next instant or sorcery spell you cast this turn has storm. (When you cast that spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Trample

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

: Target creature with power 2 or less can't be blocked this turn.

Whenever a source deals damage to Crag Saurian, that source's controller gains control of Crag Saurian.

When Cragganwick Cremator enters the battlefield, discard a card at random. If you discard a creature card this way, Cragganwick Cremator deals damage equal to that card's power to target player or planeswalker.

Mountaincycling (, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Backup 2 (When this creature enters the battlefield, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.)

Trample

Equipped creature gets +1/+0 for each artifact you control.

: Attach Cranial Plating to target creature you control.

Equip

Creatures you control gain trample until end of turn. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

Draw a card.

, Discard a card: Crashing Centaur gains trample until end of turn.

Threshold — As long as seven or more cards are in your graveyard, Crashing Centaur gets +2/+2 and has shroud. (It can't be the target of spells or abilities.)

Suspend 4— (Rather than cast this card from your hand, pay and exile it with four 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.)

Create two 4/4 green Rhino creature tokens with trample.

Craven Giant can't block.

Enchant creature you control

Enchanted creature gets +3/+2, has haste, and attacks each combat if able.

: Return Craving of Yeenoghu from your graveyard to the battlefield attached to target creature you control. Craving of Yeenoghu perpetually gains "Enchanted creature gets -1/-1." Activate only as a sorcery.

: Add .

: Put two +1/+1 counters on Crawling Barrens. Then you may have it become a 0/0 Elemental creature until end of turn. It's still a land.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Soulshift 5 (When this creature dies, you may return target Spirit card with mana value 5 or less from your graveyard to your hand.)

At the beginning of your upkeep, you may mill two cards.

Whenever one or more land cards are put into your graveyard from anywhere for the first time each turn, create a 1/1 green Insect creature token.

Flying, haste

Other black creatures you control get +1/+1.

Other green creatures you control get +1/+1.

At the beginning of your upkeep, you may create a 1/1 black and green Worm creature token.

At the beginning of your upkeep, Creeping Bloodsucker deals 1 damage to each opponent. You gain life equal to the damage dealt this way.

Destroy all artifacts.

Whenever Creeping Inn attacks, you may exile a creature card from your graveyard. If you do, each opponent loses X life and you gain X life, where X is the number of creature cards exiled with Creeping Inn.

: Creeping Inn phases out.

Choose a permanent type. Return all cards of the chosen type from your graveyard to your hand.

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

Other Elementals you control get +1/+0.

: Creeping Trailblazer gets +1/+1 until end of turn for each Elemental you control.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When Cresting Mosasaurus enters the battlefield, if you cast it, return each non-Dinosaur creature to its owner's hand.

: Target creature you control gains haste until end of turn. (It can attack and this turn.)

Tap target creature. It doesn't untap during its controller's next untap step.

Draw a card.

Choose a creature type. Creatures that aren't of the chosen type get -3/-3 until end of turn.

Tap target creature. Create a Cursed Role token attached to it. (Enchanted creature is 1/1.)

At the beginning of your upkeep, you may mill a card.

Delirium — , Sacrifice Crop Sigil: Return up to one target creature card and up to one target land card from your graveyard to your hand. Activate only if there are four or more card types among cards in your graveyard.

When Crossroads Candleguide enters the battlefield, exile up to one target card from a graveyard.

: Add one mana of any color.

Play with the top card of your library revealed.

As long as the top card of your library is a creature card, creatures you control that share a color with that card get +1/+1.

: Put the top card of your library on the bottom of your library.

, : Attach target Aura attached to a creature to another creature.

When Crown-Hunter Hireling enters the battlefield, you become the monarch.

Crown-Hunter Hireling can't attack unless defending player is the monarch.

Draw four cards. You lose half your life, rounded up.

Deathtouch

When Cruel Grimnarch enters the battlefield, each opponent discards a card. For each opponent who can't, you gain 4 life.

At the beginning of your upkeep, destroy target creature with a -1/-1 counter on it.

Crumbling Necropolis enters the battlefield tapped.

: Add , , or .

Crumbling Vestige enters the battlefield tapped.

When Crumbling Vestige enters the battlefield, add one mana of any color.

: Add . ( represents colorless mana.)

Choose one —

• Destroy target creature with flying.

• Destroy target enchantment.

Crushing Pain deals 6 damage to target creature that was dealt damage this turn.

Flying, protection from white

When Crypt Angel enters the battlefield, return target blue or red creature card from your graveyard to your hand.

Crypt of Agadeem enters the battlefield tapped.

: Add .

, : Add for each black creature card in your graveyard.