Necropotence

Skip your draw step.
Whenever you discard a card, exile that card from your graveyard.
Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Nantuko Shade

{B}: This creature gets +1/+1 until end of turn.

Nether Void

Whenever a player casts a spell, counter it unless that player pays {3}.

Swamp

Sinkhole

Yawgmoth's Will

Until end of turn, you may play lands and cast spells from your graveyard.
If a card would be put into your graveyard from anywhere this turn, exile that card instead.

Powder Keg

At the beginning of your upkeep, you may put a fuse counter on this artifact.
{T}, Sacrifice this artifact: Destroy each artifact and creature with mana value equal to the number of fuse counters on this artifact.

Hymn to Tourach

Target player discards two cards at random.

Demonic Tutor

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

Hypnotic Specter

Flying
Whenever this creature deals damage to an opponent, that player discards a card at random.

Demonic Consultation

Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Sol Ring

Mox Jet

Dark Ritual

Duress

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