At the beginning of combat on your turn, choose target nonland permanent you control. Until end of turn, it becomes a Vehicle artifact with base power and toughness each equal to its mana value, and it gains crew 2 and "Crash Land — Whenever this Vehicle deals damage, roll a six-sided die. If the result is equal to this Vehicle's mana value, sacrifice this Vehicle, then it deals that much damage to any target."

Equipped creature gets +1/+0.

Whenever equipped creature attacks, create a 1/1 white Kor Ally creature token that's tapped and attacking.

Equip

: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

Take an extra turn after this one.

Enchant creature

For each other card named Cardboard Carapace you have with you outside the game, enchanted creature gets +1/+1.

When Carnage Interpreter enters the battlefield, discard your hand, then investigate four times. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

As long as you have one or fewer cards in hand, Carnage Interpreter gets +2/+2 and has menace.

Flying

Carnifex Demon enters the battlefield with two -1/-1 counters on it.

, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature.

First strike, haste

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.

: Carrion Ants gets +1/+1 until end of turn.

Whenever Carth the Lion enters the battlefield or a planeswalker you control dies, look at the top seven cards of your library. You may reveal a planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Planeswalkers' loyalty abilities you activate cost an additional +1 to activate.

: Add .

, : Add , , or .

When this Case enters the battlefield, discard a card, then draw two cards.

To solve — You have no cards in hand. (If unsolved, solve at the beginning of your end step.)

Solved — At the beginning of your upkeep, discard your hand, then draw two cards.

Instant and sorcery spells you cast cost less to cast.

To solve — You've cast four or more instant and sorcery spells this turn. (If unsolved, solve at the beginning of your end step.)

Solved — Whenever you cast an instant or sorcery spell, draw a card.

When this Case enters the battlefield, create a 2/1 black Skeleton creature token and suspect it. (It has menace and can't block.)

To solve — You control no suspected Skeletons. (If unsolved, solve at the beginning of your end step.)

Solved — , Sacrifice this Case: Search your library for a card, put it into your hand, then shuffle. Activate only as a sorcery.

Vigilance

Whenever Cass or another creature you control dies, if it was enchanted or equipped, return any number of Aura cards that were attached to it from your graveyard to the battlefield attached to target creature, then attach any number of Equipment that were attached to it to that creature.

Castle Embereth enters the battlefield tapped unless you control a Mountain.

: Add .

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

Castle Locthwain enters the battlefield tapped unless you control a Swamp.

: Add .

, : Draw a card, then you lose life equal to the number of cards in your hand.

Choose one or more —

• Destroy target artifact.

• Destroy target creature.

• Destroy target enchantment.

• Destroy target land.

• Destroy target planeswalker.

Cataclysmic Prospecting deals X damage to each creature. For each mana from a Desert spent to cast this spell, create a tapped Treasure token.

Flashback costs you pay cost less.

Flashback costs your opponents pay cost more.

Destroy all lands or all creatures. Creatures destroyed this way can't be regenerated.

Sacrifice a creature: Regenerate Cateran Overlord.

, : Search your library for a Mercenary permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.

Whenever a creature enters the battlefield under your control, put a +1/+1 counter on each creature you control.

First strike, reach

Whenever Catti-brie of Mithral Hall attacks, put a +1/+1 counter on it for each Equipment attached to it.

, Remove all +1/+1 counters from Catti-brie: It deals X damage to target attacking or blocking creature an opponent controls, where X is the number of counters removed this way.

Whenever Caustic Bronco attacks, reveal the top card of your library and put it into your hand. You lose life equal to that card's mana value if Caustic Bronco isn't saddled. Otherwise, each opponent loses that much life.

Saddle 3 (Tap any number of other creatures you control with total power 3 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

You may exile a red card from your hand rather than pay this spell's mana cost.

Cave-In deals 2 damage to each creature and each player.

This spell costs less to cast, where X is the greatest number of artifacts an opponent controls.

Flying, trample, haste

Whenever Cavern-Hoard Dragon deals combat damage to a player, you create a Treasure token for each artifact that player controls.

Trample

When Caves of Chaos Adventurer enters the battlefield, you take the initiative.

Whenever Caves of Chaos Adventurer attacks, exile the top card of your library. If you've completed a dungeon, you may play that card this turn without paying its mana cost. Otherwise, you may play that card this turn.

At the beginning of combat on your turn, roll two six-sided dice. For each result of 1, Celebr-8000 gets +1/+1 until end of turn. For each other result, it gains the indicated ability until end of turn. If you rolled doubles, it also gains double strike until end of turn.

• 2 — menace • 5 — flying

• 3 — vigilance • 6 — indestructible

• 4 — lifelink

Flying

Whenever you cast an enchantment spell, put a +1/+1 counter on each creature you control.

Celestial Colonnade enters the battlefield tapped.

: Add or .

: Until end of turn, Celestial Colonnade becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

Lands you control are Plains.

Nonland permanents you control are white. The same is true for spells you control and nonland cards you own that aren't on the battlefield.

You may spend white mana as though it were mana of any color. You may spend other mana only as though it were colorless mana.

Flying

When Celestial Gatekeeper dies, exile it, then return up to two target Bird and/or Cleric permanent cards from your graveyard to the battlefield.

Flying

Whenever you cast a Spirit or Arcane spell, destroy all permanents with that spell's mana value.

, : Target creature you control gets +3/+3 until end of turn. Its controller sacrifices it at the beginning of the next end step.

Whenever a creature dies, you may pay . If you do, Cemetery Puca becomes a copy of that creature, except it has this ability.

Hideaway 5 (When this enchantment enters the battlefield, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.)

At the beginning of your upkeep, you may mill three cards. Then if there are twenty or more cards in your graveyard, you may play the exiled card without paying its mana cost.

Trample

Centaur Vinecrasher enters the battlefield with a number of +1/+1 counters on it equal to the number of land cards in all graveyards.

Whenever a land card is put into a graveyard from anywhere, you may pay . If you do, return Centaur Vinecrasher from your graveyard to your hand.

Visit — Each player draws a card from the library of the player to their right. You create three Treasure tokens.

Lights — 4, 6

Cephalid Facetaker can't be blocked.

At the beginning of combat on your turn, you may have Cephalid Facetaker become a copy of another target creature until end of turn, except it's 1/4 and has "This creature can't be blocked."

Whenever a player casts a spell, counter that spell unless that player pays , where X is the number of cards in all graveyards with the same name as the spell.

Target opponent reveals the top card of their library. Cerebral Eruption deals damage equal to the revealed card's mana value to that player and each creature that player controls. If a land card is revealed this way, return Cerebral Eruption to its owner's hand.

Flying

: Cerulean Sphinx's owner shuffles it into their library.

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

Enchant Mountain you control

When Chained to the Rocks enters the battlefield, exile target creature an opponent controls until Chained to the Rocks leaves the battlefield. (That creature returns under its owner's control.)

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn.

Whenever a nontoken creature enters the battlefield under your control, if you didn't cast it from your hand, it gains haste until your next turn.

Chalice of the Void enters the battlefield with X charge counters on it.

Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell.

Changeling (This card is every creature type.)

Protection from black

: Chameleon Colossus gets +X/+X until end of turn, where X is its power.

When Champion of Dusk enters the battlefield, you draw X cards and you lose X life, where X is the number of Vampires you control.