When Black Cat enters, look at the top nine cards of target opponent's library, exile two of them face down, then put the rest on the bottom of their library in a random order. You may play the exiled cards for as long as they remain exiled. Mana of any type can be spent to cast spells this way.

Whenever a creature dies, put a charge counter on this enchantment.
At the beginning of your first main phase, add for each charge counter on this enchantment.

You may pay rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield.
Each player sacrifices thirteen creatures of their choice.

Metalcraft — When this creature enters, if you control three or more artifacts, target player loses 4 life and you gain 4 life.

, Sacrifice another creature: Put a +1/+1 counter on this creature and you gain 2 life.

Flying
At the beginning of your upkeep, target player draws a card and loses 1 life.

Bloodthirst 3
Flying
Whenever you cast a Vampire creature spell, it gains bloodthirst 3.

Flying, deathtouch
Whenever an opponent loses life, you gain that much life.

Protection from white
At the beginning of your upkeep, sacrifice this creature unless you sacrifice a land.

Flying
, Sacrifice a Food: Target creature gets -3/-3 until end of turn.

Flying
, Exile seven other cards from your graveyard: Return this card from your graveyard to the battlefield tapped.

When Bone Rattler is put into your graveyard from anywhere, exile it. When you do, create four Reassembling Skeleton token cards and put them into your graveyard.

When this creature enters, you may exile target creature card from a graveyard. If you do, create a 2/2 black Zombie creature token.

Destroy target creature that isn't enchanted. It can't be regenerated.
Transmute

When this creature enters, you may have target opponent discard a card.

: Target opponent discards two cards. Activate only during your turn, before attackers are declared.

Target player draws three cards, loses 3 life, and gets three poison counters.

Whenever this creature attacks or blocks, any player may exile three cards from their graveyard. If a player does, this creature assigns no combat damage this turn.

Fear
, : Search your library for a Mercenary permanent card with mana value 4 or less, put it onto the battlefield, then shuffle.

Landfall — Whenever a land you control enters, you may have target creature get -1/-1 until end of turn.

All Nightmares get +1/+1.
, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types.
When Chainer leaves the battlefield, exile all Nightmares.

When this creature enters, you draw X cards and you lose X life, where X is the number of Vampires you control.

Trample, haste
When this creature enters, target opponent creates three 0/1 white Goat creature tokens.
At the beginning of combat on your turn, any opponent may sacrifice a creature of their choice. If a player does, tap this creature, you gain 3 life, and you draw a card.

Flying, trample
Pay 3 life: Return this card from your graveyard to your hand. Activate only if you had an Angel or Berserker enter the battlefield under your control this turn.

Enchant creature
Enchanted creature gets +3/+3 as long as it's a Zombie. Otherwise, it gets -3/-3.

Sacrifice two lands: Return this card from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp.

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Return target creature card from your graveyard to the battlefield. Then if the gift was promised and that creature isn't legendary, create a token that's a copy of that creature, except it's 1/1.

As this enchantment enters, choose a creature type.
Creatures you control are the chosen type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Destroy each creature with mana value 3 or less. They can't be regenerated.

You may pay 1 life and exile a black card from your hand rather than pay this spell's mana cost.
Distribute two -2/-1 counters among one or two target creatures.