When Byway Courier dies, investigate. (Create a colorless Clue artifact token with ", Sacrifice this artifact: Draw a card.")

, : Add for each Swamp you control.

Threshold — , , Exile two cards from your graveyard: Target player discards a card. Activate this ability only any time you could cast a sorcery and only if seven or more cards are in your graveyard.

Whenever you cast a historic spell, Cabal Paladin deals 2 damage to each opponent. (Artifacts, legendaries, and Sagas are historic.)

: Add . Cabal Pit deals 1 damage to you.

Threshold — , , Sacrifice Cabal Pit: Target creature gets -2/-2 until end of turn. Activate this ability only if seven or more cards are in your graveyard.

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

: Add .

, : Add for each basic Swamp you control.

Menace

At the beginning of your precombat main phase, you may sacrifice a creature. When you do, choose a nonland card name, then target player reveals their hand and discards all cards with that name.

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

Threshold — , : Target creature gets -2/-2 until end of turn. Activate this ability only if seven or more cards are in your graveyard.

At the beginning of your upkeep, return a permanent you control to its owner's hand.

Create a token that's a copy of target creature you control.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Cackling Flames deals 3 damage to any target.

Hellbent — Cackling Flames deals 5 damage instead if you have no cards in hand.

, , Discard a card: Target creature gets +X/+0 until end of turn.

Flying

When Cadaver Imp enters the battlefield, you may return target creature card from your graveyard to your hand.

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

: Regenerate Cadaverous Knight.

As Caged Sun enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Changeling (This card is every creature type.)

As long as a creature card with flying is in a graveyard, Cairn Wanderer has flying. The same is true for fear, first strike, double strike, deathtouch, haste, landwalk, lifelink, protection, reach, trample, shroud, and vigilance.

: Add .

, : Put a storage counter on Calciform Pools.

, Remove X storage counters from Calciform Pools: Add X mana in any combination of and/or .

Counter target spell unless its controller pays .

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)

When Caldera Hellion enters the battlefield, it deals 3 damage to each creature.

Caldera Lake enters the battlefield tapped.

: Add .

: Add or . Caldera Lake deals 1 damage to you.

+1: Look at the top four cards of your library. You may reveal an enchantment card from among them and put that card into your hand. Put the rest on the bottom of your library in a random order.

−3: Exile target creature or enchantment you don't control until target enchantment you control leaves the battlefield.

−7: Return all enchantment cards from your graveyard to the battlefield.

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

Target creature gets -X/-X until end of turn, where X is the sacrificed creature's power.

Create a 3/3 green Centaur creature token.

Create a 3/3 green Elephant creature token.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

: Reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, put it into your graveyard.

Create two 2/2 white Knight creature tokens with vigilance.

Devoid (This card has no color.)

Create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."

As Call to Arms enters the battlefield, choose a color and an opponent.

White creatures get +1/+1 as long as the chosen color is the most common color among nontoken permanents the chosen player controls but isn't tied for most common.

When the chosen color isn't the most common color among nontoken permanents the chosen player controls or is tied for most common, sacrifice Call to Arms.

Return target creature to its owner's hand. Its controller draws a card.

Enchant nonblack creature

Enchanted creature gets +1/+2, has flying, and is an Angel in addition to its other types.

At the beginning of each player's upkeep, that player sacrifices a non-Zombie creature.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Call to the Grave.

Return target black creature card from your graveyard to your hand.

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.)

, : Target creature gains flying until end of turn.

As an additional cost to cast this spell, choose a creature type.

Caller of the Hunt's power and toughness are each equal to the number of creatures of the chosen type on the battlefield.

Before you shuffle your deck to start the game, you may reveal this card from your deck and exile a creature card you drafted that isn't in your deck.

, : Create a token that's a copy of a card you exiled with cards named Caller of the Untamed. X is the converted mana cost of that card.

Return target nonland permanent to its owner's hand.

Amass 1. (Put a +1/+1 counter on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)

You may choose not to untap Callous Oppressor during your untap step.

As Callous Oppressor enters the battlefield, an opponent chooses a creature type.

: Gain control of target creature that isn't of the chosen type for as long as Callous Oppressor remains tapped.

, : Calming 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 can't attack.

Whenever a creature attacks, Caltrops deals 1 damage to it.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

As long as Camel is attacking, prevent all damage Deserts would deal to Camel and to creatures banded with Camel.

Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life.

Draft Canal Dredger face up.

Each player passes the last card from each booster pack to a player who drafted a card named Canal Dredger.

: Put target card from your graveyard on the bottom of your library.

Counter target spell.

Enchant creature

Enchanted creature gets +3/+2 and has vigilance.

, : Reveal the top card of your library. If it has the same name as a card in your graveyard, put it into your graveyard. Otherwise, draw a card.

If was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If was spent to cast this spell, you may have target creature get +3/+3 until end of turn. (Do both if was spent.)

Target creature loses flying until end of turn.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Beast card you reveal in your hand.)

: Target creature gets +1/+1 until end of turn for each +1/+1 counter on Canopy Crawler.