As an additional cost to cast this spell, discard a card at random.

Acceptable Losses deals 5 damage to target creature.

, Discard a card at random: Put a +1/+1 counter on target creature.

Modified creatures you control have menace. (Equipment, Auras you control, and counters are modifications.)

When Artillery Enthusiast enters the battlefield, you may discard a card. If you do, seek a card with mana value equal to that card's mana value. (To seek a card, put one at random from your library into your hand.)

Flying

Whenever Balor attacks or dies, choose one or more. Each mode must target a different player.

• Target opponent draws three cards, then discards three cards at random.

• Target opponent sacrifices a nontoken artifact of their choice.

• Balor deals damage to target opponent equal to the number of cards in their hand.

When Black Cat dies, target opponent discards a card at random.

Each player draws three cards, then discards three cards at random.

Enchant creature you control

Whenever enchanted creature attacks and isn't blocked, you may have it assign no combat damage this turn. If you do, defending player discards a card at random.

, Discard a card at random: Target creature gets +2/+2 until end of turn.

: Regenerate Corrupt Official.

Whenever Corrupt Official becomes blocked, defending player discards a card at random.

Creative Outburst deals 5 damage to any target. Look at the top five cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

, Discard Creative Outburst: Create a Treasure token.

Draw two cards, then discard a card at random.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

, , Discard a card at random: Regenerate target creature.

Discard a card at random: Dwarven Strike Force gains first strike and haste until end of turn.

You may pay rather than pay this spell's mana cost.

If the cost was paid, an opponent discards any number of cards, then draws that many cards.

Search your library for up to three cards, put them into your hand, shuffle, then discard three cards at random.

Buyback—Pay 3 life, Discard a card at random. (You may pay 3 life and discard a card at random in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Destroy target land.

, Discard a card at random: Frenetic Ogre gets +3/+0 until end of turn.

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

, , Discard two cards: Target player discards X cards at random.

Hanabi Blast deals 2 damage to any target. Return Hanabi Blast to its owner's hand, then discard a card at random.

First strike, haste

Discard a card at random: Hell-Bent Raider gains protection from white until end of turn.

Flying

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

Discard a card at random. If you do, Kindle the Carnage deals damage equal to that card's mana value to each creature. You may repeat this process any number of times.

, Discard a card at random: Mage il-Vec deals 1 damage to any target.

Target opponent discards a card at random.

Target player discards X cards at random.

When Minotaur Explorer enters, sacrifice it unless you discard a card at random.

, : Choose a card name. Target opponent reveals X cards at random from their hand. Then that player discards all cards with that name revealed this way. Activate only during your turn.

, Discard a card at random: Ogre Shaman deals 2 damage to any target.

, Discard a card at random: Pardic Swordsmith gets +2/+0 until end of turn.

, Discard a card: Draw a card.

, : Reveal cards from the top of your library until you reveal a nonlegendary, nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.

, Discard a card at random: Pyromancy deals damage to any target equal to the mana value of the discarded card.

, : Target opponent reveals their hand and discards a creature card at random. Activate only during your turn.

Put target permanent you own on the bottom of your library. Reveal cards from the top of your library until you reveal a card that shares a card type with that permanent. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Target player discards a card at random.

Cycling (, Discard this card: Draw a card.)

When you cycle Resounding Scream, target player discards two cards at random.

Return target creature card from a graveyard and target creature on the battlefield to their owners' hands.

Reach

When Rock Star enters, you may discard a card. If you do, reveal the top five cards of your library. Ask a person outside the game to choose which of them is most like a rock band. Put that card into your hand and the rest on the bottom of your library in a random order.

Draw two cards. Then discard a card at random unless you pay (two energy counters).

Choose one at random —

• You get an emblem with "At the beginning of your upkeep, pay . If you don't, you lose the game."

• Each player discards their hand.

• Planeswalk to Pools of Becoming. (Once there, you can roll the planar die only if you're playing Planechase.)

• For each opponent, exile cards from the top of their library until you exile a nonland card. You may cast those cards without paying their mana costs.

• Destroy all creatures and non-Bolas planeswalkers.

• You get an emblem with "You can cast nonland cards from your sideboard."

Whenever Skullknocker Ogre deals damage to an opponent, that player discards a card at random. If the player does, they draw a card.

As an additional cost to cast this spell, discard a card at random.

Sonic Burst deals 4 damage to any target.

Target player discards a card at random.

, Discard a card at random: Stormbind deals 2 damage to any target.

Target opponent discards a card at random, then discards a card.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Kicker (You may pay an additional as you cast this spell.)

Protection from white

Whenever an opponent discards a card, put a +1/+1 counter on Tourach, Dread Cantor.

When Tourach enters, if it was kicked, target opponent discards two cards at random.

Target opponent discards a card. Then they may discard an additional card. If they don't, conjure a duplicate of a random card from their library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

, Sacrifice Urborg Mindsucker: Target opponent discards a card at random. Activate only as a sorcery.

, , Discard a card: Look at the top X cards of your library. You may put a creature card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Target opponent discards a card at random.

Delirium — If there are four or more card types among cards in your graveyard, that player discards two cards at random instead.

Whenever an opponent draws their first card each turn, if it's not their turn, you create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

Whenever one or more Devils you control attack one or more players, you and those players each draw a card, then discard a card at random.