Condemn

Put target attacking creature on the bottom of its owner's library. Its controller gains life equal to its toughness.

Bog Wraith

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Consume Spirit

Spend only black mana on X.
Consume Spirit deals X damage to any target and you gain X life.

Contaminated Bond

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Whenever enchanted creature attacks or blocks, its controller loses 3 life.

Cruel Edict

Target opponent sacrifices a creature of their choice.

Deathmark

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Distress

Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Doomed Necromancer

{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield.

Dross Crocodile

Drudge Skeletons

{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Tenth Edition