When Go Solo enters, sacrifice any number of creatures. Draw a card for each creature sacrificed this way.
As long as you control exactly one creature, that creature gets +2/+2 and has deathtouch and lifelink.

This spell costs {3} more to cast if it's your turn.
Target creature gets -2/-2 until end of turn. If it's your turn, it gets -5/-5 until end of turn instead.

When Gray Merchant of Asphodel enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way.

When Grim Physician dies, target creature an opponent controls gets -1/-1 until end of turn.

Flash
Gulping Meqmaw's power is equal to the total number of permanents with flash you control and instant cards in your graveyard.
Whenever you cast a spell during an opponent's turn, mill two cards.

Lifelink
Pay the equip cost of an Equipment you control: Return Gutwrenched Martyr from your graveyard to the battlefield with a finality counter on it. Attach that Equipment to it. Activate only as a sorcery.

When Harvesting Blade enters, target opponent exiles two cards from their hand.
Equipped creature gets +2/+1 and has “When this creature dies, you may cast a card exiled with Harvesting Blade with equal or lesser mana value without paying its mana cost.”
Equip {3}

Whenever Hazakh Conscriptor deals combat damage to a player, create a 2/2 colorless Minion creature token with decayed.

Flash
When Hazard Blade enters, destroy target creature an opponent controls that was dealt damage this turn.
Equipped creature get +4/+0.
Equip {5}

Favored
Whenever your Champion attacks, scry 1.

You draw two cards and you lose 2 life.
Landfall — If a land entered the battlefield under your control this turn, each opponent loses 2 life.

Target player discards two cards. They lose 2 life if they discarded a land card this way.

Ward—Sacrifice a permanent.
Whenever Host of the Neverending Revel enters or attacks, each player sacrifices a nonland, nontoken permanent. For each player who doesn't, you draw a card.

When Hostage Situation enters, target opponent reveals their hand. Exile a nonland card from it and up to one creature card from your graveyard. When Hostage Situation is no longer on the battlefield, return the exiled cards to their owner's hands.

This spell costs {1} less to cast if there is a card named Avert Disaster or Imminent Disaster in your graveyard.
Exile target creature or planeswalker.

Menace
Whenever Imposing Maw deals combat damage to a player, that player loses 3 life unless they discard a card.

Whenever Inner Ring's Pupil enters or attacks, target player discards a card. If they can't, they sacrifice a creature. If they can't, they lose 7 life.

Target player reveals their hand. You choose a nonland card from it. Exile that card. Each player draws a card and loses 1 life.

Deathtouch
Cybersoul {4}{B}

When Iris Cultist enters, you lose 1 life.
Cybersoul {4}{B}

Deathtouch
When this creature transforms into Iris Flayer, target player draws a card and loses 1 life.

Target player exiles a creature they control and the top card of their library. When they exile cards this way, pay for and choose any number.
+{B} — Each player exiles a card from their hand.
+{W} — Exile any player's graveyard. You gain 1 life for each card type among cards exiled this turn.
+{C} — Each opponent loses 1 life for each card type among cards exiled this turn.

Target creature gains indestructible until end of turn. You gain life equal to its toughness.

Destroy target creature or enchantment you don't control. If your devotion to black is three or greater, you gain 3 life.

Exile target creature. Create a token that's a copy of it except it's a Ruin artifact instead of its other types and it has spellcharge X, where X is its mana value.