Wheel and Deal

Any number of target opponents each discard their hands, then draw seven cards.
Draw a card.

Apathy

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may discard a card at random. If the player does, untap that creature.

Engineered Plague

As Engineered Plague enters, choose a creature type.
All creatures of the chosen type get -1/-1.

Island

Anvil of Bogardan

Players have no maximum hand size.
At the beginning of each player's draw step, that player draws an additional card, then discards a card.

Sheoldred, the Apocalypse

Deathtouch
Whenever you draw a card, you gain 2 life.
Whenever an opponent draws a card, they lose 2 life.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Recoil

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

Swat

Destroy target creature with power 2 or less.
Cycling {2} ({2}, Discard this card: Draw a card.)

Cephalid Broker

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

Megrim

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

Terror

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

Vicious Rumors

Vicious Rumors deals 1 damage to each opponent. Each opponent discards a card, then mills a card. You gain 1 life.

Mind Sludge

Target player discards a card for each Swamp you control.

Mind Twist

Target player discards X cards at random.

Wash Out

Return all permanents of the color of your choice to their owners' hands.

Rootwater Thief

{U}: Rootwater Thief gains flying until end of turn.
Whenever Rootwater Thief deals combat damage to a player, you may pay {2}. If you do, search that player's library for a card and exile it, then the player shuffles.

Swamp

Hypnotic Cloud

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Target player discards a card. If this spell was kicked, that player discards three cards instead.