Ambition's Cost

You draw three cards and you lose 3 life.

Ancient Craving

Barter in Blood

Each player sacrifices two creatures of their choice.

Black Market

Whenever a creature dies, put a charge counter on this enchantment.
At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Blood Bairn

Sacrifice another creature: This creature gets +2/+2 until end of turn.

Butcher of Malakir

Flying
Whenever this creature or another creature you control dies, each opponent sacrifices a creature of their choice.

Champion of Stray Souls

{3}{B}{B}, {T}, Sacrifice X other creatures: Return X target creature cards from your graveyard to the battlefield.
{5}{B}{B}: Put this card from your graveyard on top of your library.

Illusory Ambusher

Flash (You may cast this spell any time you could cast an instant.)
Whenever this creature is dealt damage, draw that many cards.

Diabolic Servitude

When this enchantment enters, return target creature card from your graveyard to the battlefield.
When the creature put onto the battlefield with this enchantment dies, exile it and return this enchantment to its owner's hand.
When this enchantment leaves the battlefield, exile the creature put onto the battlefield with this enchantment.

Doomwake Giant

Constellation — Whenever this creature or another enchantment you control enters, creatures your opponents control get -1/-1 until end of turn.

Dreadbringer Lampads

Constellation — Whenever this creature or another enchantment you control enters, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Eater of Hope

Flying
{B}, Sacrifice another creature: Regenerate this creature.
{2}{B}, Sacrifice two other creatures: Destroy target creature.

Extractor Demon

Flying
Whenever another creature leaves the battlefield, you may have target player mill two cards.
Unearth {2}{B} ({2}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Fallen Ideal

Enchant creature
Enchanted creature has flying and "Sacrifice a creature: This creature gets +2/+1 until end of turn."
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Fate Unraveler

Whenever an opponent draws a card, this creature deals 1 damage to that player.

Gold

Gild

Exile target creature. Create a Gold token. (It's an artifact with "Sacrifice this token: Add one mana of any color.")

Commander 2015