Dimir Cluestone

{T}: Add {U} or {B}.
{U}{B}, {T}, Sacrifice this artifact: Draw a card.

Murder

Lonely Sandbar

This land enters tapped.
{T}: Add {U}.
Cycling {U} ({U}, Discard this card: Draw a card.)

Ravenous Rats

When this creature enters, target opponent discards a card.

Cephalid Broker

{T}: Target player draws two cards, then discards two cards.

Recoil

Return target permanent to its owner's hand. Then that player discards a card.

Wistful Thinking

Target player draws two cards, then discards four cards.

Hypnotic Specter

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

Screeching Buzzard

Flying
When this creature dies, each opponent discards a card.

Megrim

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

Dimir Guildgate

This land enters tapped.
{T}: Add {U} or {B}.

Hymn to Tourach

Target player discards two cards at random.

The Rack

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

Liliana's Caress

Whenever an opponent discards a card, that player loses 2 life.

Lore Broker

{T}: Each player draws a card, then discards a card.

Geth's Grimoire

Whenever an opponent discards a card, you may draw a card.

Island

Swamp

Urza's Guilt

Each player draws two cards, then discards three cards, then loses 4 life.

Ostracize

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

Rackling

At the beginning of each opponent's upkeep, this creature deals X damage to that player, where X is 3 minus the number of cards in their hand.