Juzám Djinn

At the beginning of your upkeep, Juzám Djinn deals 1 damage to you.

Stupor

Target opponent discards a card at random, then discards a card.

Spawning Pool

Spawning Pool enters tapped.
{T}: Add {B}.
{1}{B}: Spawning Pool becomes a 1/1 black Skeleton creature with "{B}: Regenerate this creature" until end of turn. It's still a land. (If it regenerates, the next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Duress

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

Blight

Enchant land
When enchanted land becomes tapped, destroy it.

Diabolic Edict

Target player sacrifices a creature of their choice.

Su-Chi

Sinkhole

Swamp

Dark Ritual

Alley Grifters

Whenever Alley Grifters becomes blocked, defending player discards a card.

Rapid Decay

Exile up to three target cards from a single graveyard.
Cycling {2} ({2}, Discard this card: Draw a card.)

Hypnotic Specter

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

Phyrexian Negator

Trample
Whenever Phyrexian Negator is dealt damage, sacrifice that many permanents.

Order of the Ebon Hand

Protection from white
{B}: Order of the Ebon Hand gains first strike until end of turn.
{B}{B}: Order of the Ebon Hand gets +1/+0 until end of turn.

Wasteland

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

Carrion Beetles

{2}{B}, {T}: Exile up to three target cards from a single graveyard.

Black Knight

First strike (This creature deals combat damage before creatures without first strike.)
Protection from white (This creature can't be blocked, targeted, dealt damage, or enchanted by anything white.)

Demonic Tutor

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

Evincar's Justice

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Evincar's Justice deals 2 damage to each creature and each player.

Volrath's Stronghold

{T}: Add {C}.
{1}{B}, {T}: Put target creature card from your graveyard on top of your library.

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Ostracize

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

Perish

Destroy all green creatures. They can't be regenerated.

The Rack

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.