Cobalt Golem

{1}{U}: This creature gains flying until end of turn.

Copper Myr

Crystal Shard

{3}, {T} or {U}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

Raise the Alarm

Soldier

Create two 1/1 white Soldier creature tokens.

Culling Scales

At the beginning of your upkeep, destroy target nonland permanent with the lowest mana value. (If two or more permanents are tied for lowest, target any one of them.)

Damping Matrix

Activated abilities of artifacts and creatures can't be activated unless they're mana abilities.

Dead-Iron Sledge

Whenever equipped creature blocks or becomes blocked by a creature, destroy both creatures.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Dragon Blood

{3}, {T}: Put a +1/+1 counter on target creature.

Dross Scorpion

Whenever this creature or another artifact creature dies, you may untap target artifact.

Duplicant

Imprint — When this creature enters, you may exile target nontoken creature.
As long as a card exiled with this creature is a creature card, this creature has the power, toughness, and creature types of the last creature card exiled with it. It's still a Shapeshifter.

Duskworker

Whenever this creature becomes blocked, regenerate it.
{3}: This creature gets +1/+0 until end of turn.

Elf Replica

{1}{G}, Sacrifice this creature: Destroy target enchantment.

Empyrial Plate

Equipped creature gets +1/+1 for each card in your hand.
Equip {2}

Extraplanar Lens

Imprint — When this artifact enters, you may exile target land you control.
Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Razor Barrier

Target permanent you control gains protection from artifacts or from the color of your choice until end of turn.

Farsight Mask

Whenever a source an opponent controls deals damage to you, if this artifact is untapped, you may draw a card.

Mirrodin