At the beginning of each player's upkeep, that player discards a card at random.

Haste Whenever you discard a card, this creature deals 1 damage to each opponent. {1}{R}, Discard a card: Draw a card. Activate only if this creature is attacking.

When Kroxa enters, sacrifice it unless it escaped. Whenever Kroxa enters or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape—{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

+1: Each player discards a card. −2: Target player sacrifices a creature. −6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.

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

At the beginning of each end step, each player discards their hand.

This creature attacks each combat if able. Whenever this creature attacks, discard your hand, then draw three cards. Madness {1}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

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.

Flying Whenever this creature enters or attacks, target opponent sacrifices a creature or planeswalker of their choice, discards a card, and loses 3 life. You draw a card and gain 3 life.

At the beginning of combat on your turn, you may discard a card. If you do, choose a creature. Whenever that creature deals combat damage to a player this turn, you draw two cards.

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

As an additional cost to cast this spell, discard two cards. Draw three cards.

Discard your hand, then draw a card for each card you've discarded this turn.

Draw four cards, then discard three cards at random.

{1}{B}, {T}, Discard a card: Create a 2/2 black Zombie creature token. Tap three untapped Zombies you control: You draw a card and you lose 1 life.

As an additional cost to cast this spell, sacrifice an artifact or discard a card. Draw two cards.

Surveil 2, then draw two cards. You lose 2 life. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Flying Whenever this creature deals combat damage to a player, each player discards their hand, then draws seven cards.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When this creature enters, discard a card, then draw a card. Delirium — Whenever this creature attacks for the first time each turn, if there are four or more card types among cards in your graveyard, untap target creature. After this phase, there is an additional combat phase.

{1}{R}, {T}, Sacrifice this creature: Each player discards their hand, then draws seven cards.

Flying Whenever this Vehicle attacks or blocks, you may draw a card. If you do, discard a card. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

At the beginning of each end step, if an opponent discarded a card this turn, you draw a card and you lose 1 life. {4}{B}{B}: Each opponent with no cards in hand loses 10 life.

Suspend 4—{1}{R} (Rather than cast this card from your hand, pay {1}{R} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) Each player discards their hand, then draws seven cards.

Each player discards their hand, then draws seven cards.

{T}: Add one mana of any color in your commander's color identity.

Whenever you discard a card, you may exile that card from your graveyard. {2}, {T}: Draw a card, then discard a card. {T}: Put a card exiled with this artifact into your graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.

{1}, {T}: Add {B}{R}.

{T}: Add {C}{C}.

Put any number of target creature cards from your graveyard on top of your library. Draw a card at the beginning of the next turn's upkeep.

You may play lands from your graveyard.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

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

Search your library for a card, put that card into your graveyard, then shuffle.

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