Shroud (This creature can't be the target of spells or abilities.)

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.)

, : Search your library for a creature card with mana value X or less, reveal it, put it into your hand, then shuffle.

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

Players can cast spells and activate abilities only during their own turns.

Destroy all creatures with toughness 4 or greater.

Vigilance

When Claim Jumper enters the battlefield, 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.

Choose five permanents you control. For each of those permanents, you may search your library for a card with the same name as that permanent. Put those cards onto the battlefield tapped, then shuffle.

Enchant creature

When Claustrophobia enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

: Regenerate Clay Statue.

Creatures your opponents control get -1/-1 until end of turn. (Then exile this card. You may cast the creature later from exile.)

Mage Hand — : Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

Cliffrunner Behemoth has haste as long as you control a red permanent.

Cliffrunner Behemoth has lifelink as long as you control a white permanent.

Vigilance

, Sacrifice Cliffside Rescuer: Target permanent you control gains protection from each of your opponents until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything controlled by those players.)

Enchant creature you control

Whenever enchanted creature attacks and isn't blocked, you may have it assign no combat damage this turn. If you do, defending player discards a card at random.

Whenever a creature you control becomes blocked, Close Quarters deals 1 damage to any target.

Flying

First strike (This creature deals combat damage before creatures without first strike.)

Flying

Cloud Dragon can block only creatures with flying.

As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery.

Spells you cast of the chosen type cost less to cast.

Flying

When Cloud of Faeries enters the battlefield, untap up to two lands.

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

Flying

Cloud Spirit can block only creatures with flying.

Flying

When Cloudblazer enters the battlefield, you gain 2 life and draw two cards.

Flying

When Cloudchaser Kestrel enters the battlefield, destroy target enchantment.

: Target permanent becomes white until end of turn.

Reach (This creature can block creatures with flying.)

When Cloudform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Cloudform to it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Enchanted creature has flying and hexproof.

Flying

: Cloudheath Drake gains vigilance until end of turn.

All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone.

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.)

Reach

Whenever this creature mutates, you may discard a card. If you do, draw a card.

As long as you control a Bird, Cloudreach Cavalry gets +2/+2 and has flying.

Flying

, , Discard a card: Create a 1/1 blue Faerie creature token named Cloud Sprite. It has flying and "Cloud Sprite can block only creatures with flying."

Sliver creatures you control have flying and haste.

Flying

Equipped creature has flying and "You can't lose the game and your opponents can't win the game."

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Flash

Reach

When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Visit — Create a 1/1 white Clown Robot artifact creature token.

Lights — 2, 6

Visit — Create a 1/1 white Clown Robot artifact creature token.

Lights — 4, 6

Create two 1/1 white Clown Robot artifact creature tokens, then roll a six-sided die. If the result is equal to or less than the number of Robots you control, create a 1/1 white Clown Robot artifact creature token.

Return target permanent to its owner's hand. Its controller loses 3 life.

Transmute (, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Whenever Coalhauler Swine is dealt damage, it deals that much damage to each player.

Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.)

Trample

Trample

Whenever Coastline Marauders attacks, it gets +1/+0 until end of turn for each land defending player controls.

Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

You can't cast permanent spells.

, : Add . When you next cast a spell this turn, exile cards from the top of your library until you exile an instant or sorcery card with lesser mana value. Until end of turn, you may cast that card without paying its mana cost. Put each other card exiled this way on the bottom of your library in a random order.

Sacrifice two lands: Return Coffin Puppets from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp.

You may choose not to untap Coffin Queen during your untap step.

, : Put target creature card from a graveyard onto the battlefield under your control. When Coffin Queen becomes untapped or you lose control of Coffin Queen, exile that creature.

Enchant creature

Enchanted creature gets +1/-1.

Sacrifice Coils of the Medusa: Destroy all non-Wall creatures blocking enchanted creature.

Destroy target creature with toughness 4 or greater.

Escalate—Discard a card. (Pay this cost for each mode chosen beyond the first.)

Choose one or more —

• Target opponent reveals their hand. You choose an instant or sorcery card from it. That player discards that card.

• Target creature gets -2/-2 until end of turn.

• Target opponent loses 2 life and you gain 2 life.

Activated abilities of artifacts can't be activated.

Collision deals 6 damage to target creature with flying.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Flying, ward

Channel — , Discard Colossal Skyturtle: Return target card from your graveyard to your hand.

Channel — , Discard Colossal Skyturtle: Return target creature to its owner's hand.