When Chittering Rats enters the battlefield, target opponent puts a card from their hand on top of their library.

Flying

When Chivalrous Chevalier enters the battlefield, return a creature you control to its owner's hand unless you compliment an opponent.

, , Discard a card: The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

If an opponent controls a Swamp and you control a Plains, you may cast this spell without paying its mana cost.

Protection from black

Enchant creature

Enchanted creature can't attack or block.

, Sacrifice Choking Restraints: Exile enchanted creature.

Prevent all damage that would be dealt to Cho-Manno, Revolutionary.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Search your library for a creature card with converted mana cost X or less and put it onto the battlefield. Then shuffle your library.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

As an additional cost to cast creature spells, you may pay any amount of mana. If you do, that creature enters the battlefield with that many additional +1/+1 counters on it.

Creatures you control get +1/+0 until end of turn.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Flying, first strike, vigilance, trample, lifelink

Enchanted creature gets +4/+4 and has flying, first strike, vigilance, trample, and lifelink.

Lands you control have ": Add one mana of any color."

: Add one mana of any color.

, , Sacrifice Chromatic Sphere: Add one mana of any color. Draw a card.

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.

: Add one mana of any of the exiled card's colors.

Metalcraft — Chrome Steed gets +2/+2 as long as you control three or more artifacts.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Chromeshell Crab is turned face up, you may exchange control of target creature you control and target creature an opponent controls.

Flash

This spell can't be countered.

Flying

Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.

: Add .

: Chronatog Totem becomes a 1/2 blue Atog artifact creature until end of turn.

: Chronatog Totem gets +3/+3 until end of turn. You skip your next turn. Activate this ability only once each turn and only if Chronatog Totem is a creature.

When Chronicler of Heroes enters the battlefield, draw a card if you control a creature with a +1/+1 counter on it.

Until your next turn, creatures can't attack you. Exile Chronomantic Escape with three time counters on it.

Suspend 3— (Rather than cast this card from your hand, you may pay and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

: Return Chronosavant from your graveyard to the battlefield tapped. You skip your next turn.

Flying

Vanishing 3 (This creature enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Chronozoa dies, if it had no time counters on it, create two tokens that are copies of it.

Return target creature and target land to their owners' hands.

Destroy target creature. If a white creature dies this way, Cinder Cloud deals damage to that creature's controller equal to the creature's power.

, , Sacrifice Cinder Elemental: It deals X damage to any target.

(: Add or .)

Cinder Glade enters the battlefield tapped unless you control two or more basic lands.

: Add .

: Add or . Cinder Marsh doesn't untap during your next untap step.

, : Reveal any number of red cards in your hand. Cinder Seer deals X damage to any target, where X is the number of cards revealed this way.

Cinder Storm deals 7 damage to any target.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

: Regenerate Cinderbones.

: Target player discards a card. Activate this ability only during your turn.

Put a -1/-1 counter on Cinderhaze Wretch: Untap Cinderhaze Wretch.

As Circle of Affliction enters the battlefield, choose a color.

Whenever a source of the chosen color deals damage to you, you may pay . If you do, target player loses 1 life and you gain 1 life.

Vigilance

Formidable — : Add . Activate this ability only if creatures you control have total power 8 or greater.

As Circle of Protection: Art enters the battlefield, choose an artist.

: The next time a source of your choice with art by the chosen artist would deal damage to you this turn, prevent that damage.

: Return Circle of Protection: Art to its owner's hand.

: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

: The next time a creature of your choice with shadow would deal damage to you this turn, prevent that damage.

As Circle of Solace enters the battlefield, choose a creature type.

: The next time a creature of the chosen type would deal damage to you this turn, prevent that damage.

Whenever you cast a blue spell, exile the top card of target player's library.

Whenever you cast a black spell, exile the top card of target player's library.

Your opponents can't cast spells with the same name as a card exiled with Circu, Dimir Lobotomist.

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

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever an opponent casts an artifact spell, put a +1/+1 counter on Citanul Druid.

Kicker (You may pay an additional as you cast this spell.)

When Citanul Woodreaders enters the battlefield, if it was kicked, draw two cards.

When you play another land, sacrifice City of Traitors.

: Add .

When Civic Stalwart enters the battlefield, creatures you control get +1/+1 until end of turn.

: Draw a card, then discard a card. If a creature card is discarded this way, untap Civilized Scholar, then transform it.

Enchant creature

Enchanted creature has ", : Target player loses 2 life."

Look at target player's hand.

Draw a card at the beginning of the next turn's upkeep.

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)

Whenever Clamor Shaman attacks, target creature an opponent controls can't block this turn.

All Spirits have "When this permanent enters the battlefield, you may have it deal 3 damage to target non-Spirit creature."

Non-Spirit creatures have "When this creature enters the battlefield, you may have it deal 3 damage to target Spirit creature."

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

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

Cleansing Screech deals 4 damage to any target.