Noggin Whack

Prowl {1}{B} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)
Target player reveals three cards from their hand. You choose two of them. That player discards those cards.

Dark Ritual

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Bitterblossom

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

Hypnotic Specter

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

Jet Medallion

Black spells you cast cost {1} less to cast.

Curse of Death's Hold

Enchant player
Creatures enchanted player controls get -1/-1.

One-Eyed Scarecrow

Defender
Creatures with flying your opponents control get -1/-0.

Unburden

Target player discards two cards.
Cycling {2} ({2}, Discard this card: Draw a card.)

Mind Shatter

Target player discards X cards at random.

Pithing Needle

As Pithing Needle enters, choose a card name.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Oona's Blackguard

Flying
Each other Rogue creature you control enters with an additional +1/+1 counter on it.
Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, that player discards a card.

Megrim

Whenever an opponent discards a card, Megrim deals 2 damage to that player.

Deathmark

Swamp

Ghost-Lit Stalker

{4}{B}, {T}: Target player discards two cards. Activate only as a sorcery.
Channel — {5}{B}{B}, Discard Ghost-Lit Stalker: Target player discards four cards. Activate only as a sorcery.