Haste

When Chimney Rabble enters, create a 1/1 red Phyrexian Goblin creature token.

Flying

At the beginning of your upkeep, sacrifice Chisei, Heart of Oceans unless you remove a counter from a permanent you control.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Flying, haste

Whenever Chiss-Goria, Forge Tyrant attacks, exile the top five cards of your library. You may cast an artifact spell from among them this turn. If you do, it has affinity for artifacts.

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.)

Whenever this creature mutates, each opponent sacrifices a creature.

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

When Chittering Witch enters, create a number of 1/1 black Rat creature tokens equal to the number of opponents you have.

, Sacrifice a creature: Target creature gets -2/-2 until end of turn.

At the beginning of your upkeep, you may put a +1/+1 counter on Chlorophant.

Threshold — As long as seven or more cards are in your graveyard, Chlorophant has "At the beginning of your upkeep, you may put another +1/+1 counter on Chlorophant."

Whenever Cho-Arrim Bruiser attacks, you may tap up to two target creatures.

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

Destroy target creature with power 4 or greater. (Then exile this card. You may cast the creature later from exile.)

Flying

Heroic — Whenever you cast a spell that targets Chorus of the Tides, scry 1. (To scry 1, look at the top card of your library, then you may put that card on the bottom.)

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.

Flying

When Chrome Courier enters, reveal the top two cards of your library. Put one of them into your hand and the other into your graveyard. If you put an artifact card into your hand this way, you gain 3 life.

Flying

Whenever you cast a noncreature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+1 counters on it and ": Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

When Chrome Replicator enters, if you control two or more nonland, nontoken permanents with the same name as one another, create a 4/4 colorless Construct artifact creature token.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Flying

When Chromescale Drake enters, reveal the top three cards of your library. Put all artifact cards revealed this way into your hand and the rest into your graveyard.

Flying

Rampage 2 <I>(Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)</I>

At the beginning of your upkeep, sacrifice Chromium unless you pay .

: Chronatog gets +3/+3 until end of turn. You skip your next turn. Activate only once each turn.

When Chronicler of Worship enters the battlefield, put a random Shrine card from among the top seven cards of your library into your hand. It perpetually gains "This spell costs less to cast." Then shuffle.

: Add one mana of any color.

Flying

Atomic Transmutation — , , Sacrifice another artifact: Draw a card.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

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

Whenever Chub Toad blocks or becomes blocked, it gets +2/+2 until end of turn.

Fathomless descent — When Chupacabra Echo enters, target creature an opponent controls gets -X/-X until end of turn, where X is the number of permanent cards in your graveyard.

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

Trample

When Cinder Hellion enters, it deals 2 damage to target opponent or planeswalker.

, : 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.

Defender

When Cinder Wall blocks, destroy it at end of combat.

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

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

Cindering Cutthroat enters with a +1/+1 counter on it if an opponent lost life this turn.

: Cindering Cutthroat gains menace until end of turn. (It can't be blocked except by two or more creatures.)

Flying

Cipherbound Spirit can block only creatures with flying.

: Draw two cards, then discard a card.

Vigilance

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

Bear Form — During your turn, Circle of the Moon Druid is a Bear with base power and toughness 4/2. (It loses all other creature types.)

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.

Vigilance

Secret council — Whenever Círdan the Shipwright enters or attacks, each player secretly votes for a player, then those votes are revealed. Each player draws a card for each vote they received. Each player who received no votes may put a permanent card from their hand onto the battlefield.

Vigilance (Attacking doesn't cause this creature to tap.)

Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)

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

, Tap an untapped artifact or creature you control: Add one mana of any color.

Trample

When you cast this spell and whenever Cityscape Leveler attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token.

Unearth

Flying

When Citywatch Sphinx dies, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

, : Target creature gets +0/+1 until end of turn.

, : Put target creature you control on top of its owner's library.

When Civic Wayfinder enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

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

Vigilance

When Claim Jumper enters, if an opponent controls more lands than you, you may search your library for a Plains card and put it onto the battlefield tapped. Then if an opponent controls more lands than you, repeat this process once. If you search your library this way, shuffle.

Proclamator Hailer — Each creature you control gets +1/+1 for each +1/+1 counter on it.

If you roll a 3 on a six-sided die, you may reroll that die.

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

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

Impossible Girl — If Clara Oswald is your commander, choose a color before the game begins. Clara Oswald is the chosen color.

If a triggered ability of a Doctor you control triggers, that ability triggers an additional time.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Whenever you cast your second spell each turn, create a 1/1 white Spirit creature token with flying.

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