Centaur Nurturer

Creature — Centaur Druid (2/4)

When Centaur Nurturer enters, you gain 3 life.
: Add one mana of any color.

Channeler Initiate

Creature — Human Druid (3/4)

When Channeler Initiate enters, put three -1/-1 counters on target creature you control.
, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color.

Chromatic Star

Artifact

, , Sacrifice Chromatic Star: Add one mana of any color.
When Chromatic Star is put into a graveyard from the battlefield, draw a card.

Command Tower

Land

: Add one mana of any color in your commander's color identity.

Command Tower // Command Tower

: Add one mana of any color in your commander's color identity.

Command Tower

: Add one mana of any color in your commander's color identity.

Commander's Sphere

Artifact

: Add one mana of any color in your commander's color identity.
Sacrifice Commander's Sphere: Draw a card.

Conduit Pylons

Land — Desert

When Conduit Pylons enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
: Add .
, : Add one mana of any color.

Corrupted Crossroads

Land

: Add . ( represents colorless mana.)
, Pay 1 life: Add one mana of any color. Spend this mana only to cast a spell with devoid.

Corsair Captain

Creature — Human Pirate (2/2)

When Corsair Captain enters, 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.

Cultivator's Caravan

Artifact — Vehicle

: Add one mana of any color.
Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Darksteel Ingot

Artifact

Indestructible (Effects that say "destroy" don't destroy this artifact.)
: Add one mana of any color.

Dawnhart Rejuvenator

Creature — Human Warlock (2/4)

When Dawnhart Rejuvenator enters, you gain 3 life.
: Add one mana of any color.

Deadly Dispute

Instant

As an additional cost to cast this spell, sacrifice an artifact or creature.
Draw two cards and create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Deathrite Shaman

Creature — Elf Shaman (1/2)

: Exile target land card from a graveyard. Add one mana of any color.
, : Exile target instant or sorcery card from a graveyard. Each opponent loses 2 life.
, : Exile target creature card from a graveyard. You gain 2 life.

Delighted Halfling

Creature — Halfling Citizen (1/2)

: Add .
: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered.

Depths of Desire

Instant

Return target creature to its owner's hand. Create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Divergent Growth

Instant

Until end of turn, lands you control gain ": Add one mana of any color."

Draconic Disciple

Creature — Human Shaman (2/2)

: Add one mana of any color.
, , Sacrifice Draconic Disciple: Create a 5/5 red Dragon creature token with flying.