Flying
, Exile this creature: Create a 1/2 black Bat creature token with flying. It has ", Sacrifice this token: Return an exiled card named Sengir Nosferatu to the battlefield under its owner's control."

Flying
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

When this creature enters, you may destroy target nonblack creature.

Destroy target nonblack creature. It can't be regenerated. You gain life equal to its toughness.

Swampwalk
Sacrifice this creature: Exile target card from a graveyard.

Flying
When this creature enters, destroy target non-Demon creature.
At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.

Exile all creatures and planeswalkers with mana value 3 or less from the battlefield and all creature and planeswalker cards with mana value 3 or less from all graveyards.

Destroy target creature or enchantment. Create a Wicked Role token attached to up to one target creature you control. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1. When this Aura is put into a graveyard, each opponent loses 1 life.)

Menace
When Sheoldred enters, each opponent sacrifices a nontoken creature or planeswalker of their choice.
: Exile Sheoldred, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard.

Flying
Sacrifice another creature: Create a Blood token. If you sacrificed an Angel this way, create a number of Blood tokens equal to its toughness instead.
, Sacrifice six Blood tokens: Return each creature card from your graveyard to the battlefield with a finality counter on it. Those creatures are Vampires in addition to their other types.

, : All damage that would be dealt to you this turn by target attacking creature is dealt to this creature instead.

Whenever Shredder attacks a player, for each other opponent, create a token that's a copy of Shredder tapped and attacking that player, except it isn't legendary. Sacrifice those tokens at end of combat.
Whenever Shredder deals combat damage to a player, that player loses half their life, rounded up.

Flying
Tribute 2
When this creature enters, if tribute wasn't paid, target opponent sacrifices a creature of their choice.

When this enchantment enters, destroy up to one target creature.
At the beginning of your end step, if a creature died under an opponent's control this turn, create a Treasure token. Then if you control three or more Treasures, transform this enchantment.

Deathtouch
Exploit
When Sidisi exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

Flying
Infect
: Skithiryx gains haste until end of turn.
: Regenerate Skithiryx.

When you cast a creature spell, sacrifice this creature.

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature.
, , Remove X ki counters from this creature: Target creature gets -X/-X until end of turn.

Flying
Discard a creature card: This creature gets +2/+2 until end of turn.

Flying
Each creature card in your graveyard that's a Cleric, Rogue, Warrior, and/or Wizard has unearth .

When this creature enters, you may search your library and/or graveyard for a card named Sorin, Vampire Lord, reveal it, and put it into your hand. If you search your library this way, shuffle.

Flying
Whenever a creature dealt damage by this creature this turn dies, return that card to the battlefield under your control.
Morph

Target player loses 4 life and you gain 4 life.

Soul Shred deals 3 damage to target nonblack creature. You gain 3 life.

Soulhunter Rakshasa can't block.
When Soulhunter Rakshasa enters, if you cast it from your hand, it deals 1 damage to target opponent for each swamp you control.

Flying
When this creature enters, you may exile one or more creature cards from your graveyard. When you do, each other creature gets -X/-X until end of turn, where X is the number of cards exiled this way.

Flying, lifelink
When this creature enters, choose target opponent. Secretly choose a creature or planeswalker that player controls. That player sacrifices a creature or planeswalker of their choice, then sacrifices the chosen permanent.

Swampwalk
Cycling — Pay 2 life.

At the beginning of your upkeep, each opponent loses 1 life. You gain life equal to the life lost this way.

Create two 1/1 green Squirrel creature tokens. Then each creature that isn't an Insect, Rat, Spider, or Squirrel gets -1/-1 until end of turn for each creature you control that's an Insect, Rat, Spider, or Squirrel.