Duress

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

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Ravenous Rats

When Ravenous Rats enters the battlefield, target opponent discards a card.

Ambition's Cost

You draw three cards and you lose 3 life.

Hypnotic Specter

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

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.)

Looming Shade

{B}: Looming Shade gets +1/+1 until end of turn.

Swamp

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Corrupt

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.