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

Whenever you discard a card, exile that card from your graveyard. {2}, {T}: Draw a card, then discard a card. {4}, {T}, Sacrifice this artifact: Return all cards exiled with this artifact to their owner's hand.

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

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

Flying When this creature enters, target opponent discards a card. Whenever an opponent discards a card, that player loses 2 life.

Necrogoyf's power is equal to the number of creature cards in all graveyards. At the beginning of each player's upkeep, that player discards a card. Madness {1}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

When this creature enters, each player sacrifices a creature or planeswalker of their choice. Each player who can't discards a card.

When this creature enters, each player discards a card. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Each opponent discards two cards. If you control a Vampire, each opponent loses 2 life and you gain 2 life.

As an additional cost to cast this spell, sacrifice a creature or discard a card. Destroy target creature or planeswalker.

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

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

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Target player discards two cards at random.

Target player discards two cards. Overload {1}{B} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

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

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

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

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

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

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

Add {B}{B}{B}.

If it's not your turn, you may exile a black card from your hand rather than pay this spell's mana cost. Destroy all creatures that entered this turn.