Flying
This creature enters with two -1/-1 counters on it.
, Remove a -1/-1 counter from this creature: Put a -1/-1 counter on each other creature.

Flying
Whenever this creature becomes blocked by a nonartifact, non-Dragon creature, that creature gets -X/-0 until end of turn, where X is half the creature's power, rounded down.

Swampwalk
, : Search your library for a Mercenary permanent card with mana value 5 or less, put it onto the battlefield, then shuffle.

Enchant land
Enchanted land has ": Target player loses 3 life."

Menace
When this creature enters or dies, exile another card from a graveyard. When you do, choose one —
• Remove X counters from target permanent, where X is the mana value of the exiled card.
• Target creature an opponent controls gets -X/-X until end of turn, where X is the mana value of the exiled card.

, , Sacrifice X other creatures: Return X target creature cards from your graveyard to the battlefield.
: Put this card from your graveyard on top of your library.

Surveil 3, then return a creature card from your graveyard to the battlefield with a finality counter on it. Exile Charnel Serenade with three time counters on it.
Suspend 3 —

All creatures get -X/-X until end of turn, where X is the greatest mana value of a commander you own on the battlefield or in the command zone.

Choose any number of target creature and/or planeswalker cards in graveyards. Command the Dreadhorde deals damage to you equal to the total mana value of those cards. Put them onto the battlefield under your control.

, Sacrifice a creature: Regenerate this creature.

Emerge from artifact
When this creature enters, target opponent exiles the top card of their library, a card at random from their graveyard, and a card at random from their hand. You may cast a spell from among cards exiled this way without paying its mana cost.

Enchant player
Whenever enchanted player draws a card, they lose 2 life and you gain 2 life.
Madness

When this creature enters, destroy target nonblack creature.

Flying
When this creature enters, destroy target nonblack creature. It can't be regenerated.

Destroy target nonblack creature. You gain 3 life.

Destroy target nonblack creature.
Madness

Destroy all creatures. Each player loses life equal to the number of creatures they controlled that were destroyed this way.

Flying
Tap three untapped Vampires you control: Return this card from your graveyard to your hand.

Flying, trample
Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost.
, Sacrifice another enchantment: This creature gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value.

Whenever one or more Demons you control attack a player, you draw a card and lose 1 life.
At the beginning of your end step, create a 5/5 black Demon creature token with flying, then mill two cards. If two cards that share all their card types were milled this way, sacrifice this enchantment.

Flying, trample
When Demonlord Belzenlok enters, exile cards from the top of your library until you exile a nonland card, then put that card into your hand. If the card's mana value is 4 or greater, repeat this process. Demonlord Belzenlok deals 1 damage to you for each card put into your hand this way.

When this creature enters, search your library for up to three artifact cards, put them into your graveyard, then shuffle.

When Doctor Doom enters, create two 3/3 colorless Robot Villain artifact creature tokens named Doombot.
As long as you control an artifact creature or a Plan, Doctor Doom has indestructible.
At the beginning of your end step, you draw a card and lose 1 life.

Reach
Soulbond
As long as Doom Weaver is paired with another creature, each of those creatures has "When this creature dies, draw cards equal to its power."

When this creature enters, mill three cards.
Whenever a creature dies or a creature card is put into a graveyard from a library, each opponent loses 1 life.

This creature can't block.
Whenever this creature deals combat damage to a creature, destroy that creature. It can't be regenerated.

First strike, trample
At the beginning of your upkeep, put a -2/-2 counter on this creature.
Sacrifice a creature: Remove a -2/-2 counter from this creature. If the sacrificed creature was a Thrull, put a +1/+0 counter on this creature. Activate only during your upkeep and only once each turn.

Convoke
Put target creature card from a graveyard onto the battlefield under your control.

Enchant creature
You control enchanted creature.
At the beginning of your upkeep, enchanted creature deals 1 damage to its owner.