Corrupted Grafstone enters the battlefield tapped.

: Choose a color of a card in your graveyard. Add one mana of that color.

As long as CARDNAME is tapped, creatures you control have menace and deathtouch.

Enchant Forest or Plains

Whenever enchanted land becomes tapped, its controller loses 2 life.

, : Corrupting Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay to end this effect.

Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)

When Corsair Captain enters the battlefield, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Other Pirates you control get +1/+1.

At the beginning of your upkeep, you may exile Cosima. If you do, it gains "Whenever a land enters the battlefield under your control, if Cosima is exiled, you may put a voyage counter on it. If you don't, return Cosima to the battlefield with X +1/+1 counters on it and draw X cards, where X is the number of voyage counters on it."

Whenever an opponent shuffles their library, you may put a +1/+1 counter on Cosi's Trickster.

First strike

At the beginning of your upkeep, destroy Cosmic Horror unless you pay . If Cosmic Horror is destroyed this way, it deals 7 damage to you.

If a permanent you control would be put into a graveyard from the battlefield this turn, exile it instead. Return it to the battlefield under its owner's control at the beginning of the next end step.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Choose target permanent card in your graveyard. If it has mana value 3 or less, you may put it onto the battlefield. If you don't put it onto the battlefield, put it into your hand.

You gain 3 life.

, : Choose an exiled card used to craft Cosmium Catalyst at random. You may cast that card without paying its mana cost.

When Cosmium Kiln enters the battlefield, create two 1/1 colorless Gnome artifact creature tokens.

Creatures you control get +1/+1.

At the beginning of your end step, draw a card if your life total is greater than your starting life total. Otherwise, you gain 2 life.

As an additional cost to cast this spell, sacrifice an artifact or creature.

Draw two cards.

Visit — You may put a sticker on a nonland permanent you own.

Lights — 2, 4, 6

Visit — You may put a sticker on a nonland permanent you own.

Lights — 3, 4, 6

Visit — You may put a sticker on a nonland permanent you own.

Lights — 4, 5, 6

When Council of Advisors enters the battlefield, draw a card.

As Council of the Absolute enters the battlefield, choose a noncreature, nonland card name.

Your opponents can't cast spells with the chosen name.

Spells with the chosen name you cast cost less to cast.

Will of the council — Starting with you, each player votes for a nonland permanent you don't control. Exile each permanent with the most votes or tied for most votes.

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.

This spell can't be countered.

Counter target spell you don't control.

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Counter target spell. You may cast a spell that shares a card type with it from your hand without paying its mana cost.

Counter target spell. You may cast a creature, instant, sorcery, or planeswalker spell from your graveyard with mana value less than or equal to that spell's mana value without paying its mana cost.

Counter target noncreature spell. Its controller loses 2 life.

Revolt — When Countless Gears Renegade enters the battlefield, if a permanent you controlled left the battlefield this turn, create a 1/1 colorless Servo artifact creature token.

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.

Flying

When Courier Griffin enters the battlefield, you gain 2 life.

When Courier's Briefcase enters the battlefield, create a 1/1 green and white Citizen creature token.

, Sacrifice Courier's Briefcase: Add one mana of any color.

, , Sacrifice Courier's Briefcase: Draw three cards.

Play with the top card of your library revealed.

You may play lands from the top of your library.

Landfall — Whenever a land enters the battlefield under your control, you gain 1 life.

Reach (This creature can block creatures with flying.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Court Homunculus gets +1/+1 as long as you control another artifact.

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

At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards.

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

At the beginning of your upkeep, you may put a land card from your hand onto the battlefield. If you're the monarch, instead you may put a creature or land card from your hand onto the battlefield.

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

At the beginning of your upkeep, create a 3/1 red Knight creature token. Then if you're the monarch, Court of Embereth deals X damage to each opponent, where X is the number of creatures you control.

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.

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

At the beginning of your upkeep, exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it. If you're the monarch, until end of turn, you may cast a spell from among cards exiled with Court of Locthwain without paying its mana cost.

Whenever another white creature enters the battlefield under your control, tap target creature an opponent controls.

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.)

Covenant of Blood deals 4 damage to any target and you gain 4 life.

As Cover of Darkness enters the battlefield, choose a creature type.

Creatures of the chosen type have fear. (They can't be blocked except by artifact creatures and/or black creatures.)

Visit — Drop three cards you own from outside the game one at a time onto the playing area from a height of at least one foot (about 0.3 meters). If those cards completely cover Cover the Spot, claim the prize

Prize — You get , then you may put a sticker on a nonland permanent you own. Sacrifice Cover the Spot, then open an Attraction.

Lights — 2, 3, 4, 6

Visit — Drop three cards you own from outside the game one at a time onto the playing area from a height of at least one foot (about 0.3 meters). If those cards completely cover Cover the Spot, claim the prize

Prize — You get , then you may put a sticker on a nonland permanent you own. Sacrifice Cover the Spot, then open an Attraction.

Lights — 2, 4, 5, 6

When Covert Cutpurse enters the battlefield, destroy target creature you don't control that was dealt damage this turn.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Covert Technician deals combat damage to a player, you may put an artifact card with mana value less than or equal to that damage from your hand onto the battlefield.

When Coveted Jewel enters the battlefield, draw three cards.

: Add three mana of any one color.

Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of Coveted Jewel. Untap it.

This spell costs less to cast for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)

Search your library for a card, put it into your hand, then shuffle. If you have a full party, you may cast a spell with mana value 4 or less from your hand without paying its mana cost.

Flying

When you control no artifacts, sacrifice Covetous Dragon.

Flying, deathtouch

If Covetous Geist would be put into a graveyard from anywhere, exile it instead.

Target creature can't block this turn and becomes a Coward in addition to its other types until end of turn.

Time travel.