Boomerang

Return target permanent to its owner's hand.

Swamp

Duress

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

Hymn to Tourach

Target player discards two cards at random.

Recoil

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

Warped Devotion

Whenever a permanent is returned to a player's hand, that player discards a card.

Avatar of Will

If an opponent has no cards in hand, this spell costs {6} less to cast.
Flying

Seer's Vision

Your opponents play with their hands revealed.
Sacrifice this enchantment: Look at target player's hand and choose a card from it. That player discards that card. Activate only as a sorcery.

Island

Hypnotic Specter

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

Capsize

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.)
Return target permanent to its owner's hand.

Megrim

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

Fact or Fiction

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.